Home / 746,017.60-1,119,357.12-390,947.20

Finding the Fourth Proportional to 746,017.60, 1,119,357.12 and 390,947.20

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Solution

The fourth proportional to 746,017.60, 1,119,357.12 and 390,947.20 is: 586,594.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,017.60 : 1,119,357.12 = 390,947.20 : x
  2. Step 2: Convert to fraction form
    746,017.60/1,119,357.12 = 390,947.20/x
  3. Step 3: Cross multiply
    746,017.60x = 1,119,357.12 × 390,947.20
  4. Step 4: Simplify right side
    746,017.60x = 437,609,531,864.06
  5. Step 5: Solve for x
    x = 437,609,531,864.06/746,017.60
  6. Step 6: Final answer
    x = 586,594.11

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Double scale
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Similar ratio
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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.