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Finding the Fourth Proportional to 487,070.12, 730,663.74 and 171,461.48

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Solution

The fourth proportional to 487,070.12, 730,663.74 and 171,461.48 is: 257,212.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,070.12 : 730,663.74 = 171,461.48 : x
  2. Step 2: Convert to fraction form
    487,070.12/730,663.74 = 171,461.48/x
  3. Step 3: Cross multiply
    487,070.12x = 730,663.74 × 171,461.48
  4. Step 4: Simplify right side
    487,070.12x = 125,280,686,242.74
  5. Step 5: Solve for x
    x = 125,280,686,242.74/487,070.12
  6. Step 6: Final answer
    x = 257,212.83

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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.