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Finding the Fourth Proportional to 607,070.40, 910,605.60 and 292,142.40

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Solution

The fourth proportional to 607,070.40, 910,605.60 and 292,142.40 is: 438,213.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,070.40 : 910,605.60 = 292,142.40 : x
  2. Step 2: Convert to fraction form
    607,070.40/910,605.60 = 292,142.40/x
  3. Step 3: Cross multiply
    607,070.40x = 910,605.60 × 292,142.40
  4. Step 4: Simplify right side
    607,070.40x = 266,026,505,437.44
  5. Step 5: Solve for x
    x = 266,026,505,437.44/607,070.40
  6. Step 6: Final answer
    x = 438,213.60

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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.