Home / 747,426.20-1,031,447.85-407,894.45

Finding the Fourth Proportional to 747,426.20, 1,031,447.85 and 407,894.45

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Solution

The fourth proportional to 747,426.20, 1,031,447.85 and 407,894.45 is: 562,894.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,426.20 : 1,031,447.85 = 407,894.45 : x
  2. Step 2: Convert to fraction form
    747,426.20/1,031,447.85 = 407,894.45/x
  3. Step 3: Cross multiply
    747,426.20x = 1,031,447.85 × 407,894.45
  4. Step 4: Simplify right side
    747,426.20x = 420,721,848,322.19
  5. Step 5: Solve for x
    x = 420,721,848,322.19/747,426.20
  6. Step 6: Final answer
    x = 562,894.17

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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.