Home / 747,434.69-1,031,445.48-407,905.37

Finding the Fourth Proportional to 747,434.69, 1,031,445.48 and 407,905.37

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Solution

The fourth proportional to 747,434.69, 1,031,445.48 and 407,905.37 is: 562,901.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,434.69 : 1,031,445.48 = 407,905.37 : x
  2. Step 2: Convert to fraction form
    747,434.69/1,031,445.48 = 407,905.37/x
  3. Step 3: Cross multiply
    747,434.69x = 1,031,445.48 × 407,905.37
  4. Step 4: Simplify right side
    747,434.69x = 420,732,142,957.47
  5. Step 5: Solve for x
    x = 420,732,142,957.47/747,434.69
  6. Step 6: Final answer
    x = 562,901.55

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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.