Home / 586,895.56-809,920.02-318,623.56

Finding the Fourth Proportional to 586,895.56, 809,920.02 and 318,623.56

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Solution

The fourth proportional to 586,895.56, 809,920.02 and 318,623.56 is: 439,702.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,895.56 : 809,920.02 = 318,623.56 : x
  2. Step 2: Convert to fraction form
    586,895.56/809,920.02 = 318,623.56/x
  3. Step 3: Cross multiply
    586,895.56x = 809,920.02 × 318,623.56
  4. Step 4: Simplify right side
    586,895.56x = 258,059,600,087.67
  5. Step 5: Solve for x
    x = 258,059,600,087.67/586,895.56
  6. Step 6: Final answer
    x = 439,702.76

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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.