Home / 778,839.60-1,168,417.35-442,041.60

Finding the Fourth Proportional to 778,839.60, 1,168,417.35 and 442,041.60

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Solution

The fourth proportional to 778,839.60, 1,168,417.35 and 442,041.60 is: 663,152.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,839.60 : 1,168,417.35 = 442,041.60 : x
  2. Step 2: Convert to fraction form
    778,839.60/1,168,417.35 = 442,041.60/x
  3. Step 3: Cross multiply
    778,839.60x = 1,168,417.35 × 442,041.60
  4. Step 4: Simplify right side
    778,839.60x = 516,489,074,861.76
  5. Step 5: Solve for x
    x = 516,489,074,861.76/778,839.60
  6. Step 6: Final answer
    x = 663,152.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.