Home / 730,726.96-1,008,424.45-399,602.36

Finding the Fourth Proportional to 730,726.96, 1,008,424.45 and 399,602.36

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Solution

The fourth proportional to 730,726.96, 1,008,424.45 and 399,602.36 is: 551,462.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,726.96 : 1,008,424.45 = 399,602.36 : x
  2. Step 2: Convert to fraction form
    730,726.96/1,008,424.45 = 399,602.36/x
  3. Step 3: Cross multiply
    730,726.96x = 1,008,424.45 × 399,602.36
  4. Step 4: Simplify right side
    730,726.96x = 402,968,790,101.70
  5. Step 5: Solve for x
    x = 402,968,790,101.70/730,726.96
  6. Step 6: Final answer
    x = 551,462.87

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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.