Home / 747,300.86-1,031,300.07-407,787.74

Finding the Fourth Proportional to 747,300.86, 1,031,300.07 and 407,787.74

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Solution

The fourth proportional to 747,300.86, 1,031,300.07 and 407,787.74 is: 562,760.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,300.86 : 1,031,300.07 = 407,787.74 : x
  2. Step 2: Convert to fraction form
    747,300.86/1,031,300.07 = 407,787.74/x
  3. Step 3: Cross multiply
    747,300.86x = 1,031,300.07 × 407,787.74
  4. Step 4: Simplify right side
    747,300.86x = 420,551,524,807.14
  5. Step 5: Solve for x
    x = 420,551,524,807.14/747,300.86
  6. Step 6: Final answer
    x = 562,760.66

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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.