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Finding the Fourth Proportional to 602,159.40, 903,239.10 and 402,575.40

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Solution

The fourth proportional to 602,159.40, 903,239.10 and 402,575.40 is: 603,863.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,159.40 : 903,239.10 = 402,575.40 : x
  2. Step 2: Convert to fraction form
    602,159.40/903,239.10 = 402,575.40/x
  3. Step 3: Cross multiply
    602,159.40x = 903,239.10 × 402,575.40
  4. Step 4: Simplify right side
    602,159.40x = 363,621,841,978.14
  5. Step 5: Solve for x
    x = 363,621,841,978.14/602,159.40
  6. Step 6: Final answer
    x = 603,863.10

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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.