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Finding the Fourth Proportional to 474,070.48, 654,395.17 and 310,737.51

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Solution

The fourth proportional to 474,070.48, 654,395.17 and 310,737.51 is: 428,934.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,070.48 : 654,395.17 = 310,737.51 : x
  2. Step 2: Convert to fraction form
    474,070.48/654,395.17 = 310,737.51/x
  3. Step 3: Cross multiply
    474,070.48x = 654,395.17 × 310,737.51
  4. Step 4: Simplify right side
    474,070.48x = 203,345,125,681.83
  5. Step 5: Solve for x
    x = 203,345,125,681.83/474,070.48
  6. Step 6: Final answer
    x = 428,934.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.