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Finding the Fourth Proportional to 472,291.70, 708,437.55 and 304,330.10

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Solution

The fourth proportional to 472,291.70, 708,437.55 and 304,330.10 is: 456,495.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,291.70 : 708,437.55 = 304,330.10 : x
  2. Step 2: Convert to fraction form
    472,291.70/708,437.55 = 304,330.10/x
  3. Step 3: Cross multiply
    472,291.70x = 708,437.55 × 304,330.10
  4. Step 4: Simplify right side
    472,291.70x = 215,598,870,435.26
  5. Step 5: Solve for x
    x = 215,598,870,435.26/472,291.70
  6. Step 6: Final answer
    x = 456,495.15

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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.