Home / 586,659-809,589.42-318,387

Finding the Fourth Proportional to 586,659, 809,589.42 and 318,387

Calculator

Solution

The fourth proportional to 586,659, 809,589.42 and 318,387 is: 439,374.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,659 : 809,589.42 = 318,387 : x
  2. Step 2: Convert to fraction form
    586,659/809,589.42 = 318,387/x
  3. Step 3: Cross multiply
    586,659x = 809,589.42 × 318,387
  4. Step 4: Simplify right side
    586,659x = 257,762,746,665.54
  5. Step 5: Solve for x
    x = 257,762,746,665.54/586,659
  6. Step 6: Final answer
    x = 439,374.06

Related Problems

Find fourth proportional to 293,329.50, 404,794.71 and 159,193.50
Half scale
Find fourth proportional to 1,173,318, 1,619,178.84 and 636,774
Double scale
Find fourth proportional to 586,660, 809,590.80 and 318,388
Similar ratio
Find fourth proportional to 879,988.50, 1,214,384.13 and 477,580.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.