Home / 747,790.61-1,031,945.77-408,258.86

Finding the Fourth Proportional to 747,790.61, 1,031,945.77 and 408,258.86

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Solution

The fourth proportional to 747,790.61, 1,031,945.77 and 408,258.86 is: 563,394.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,790.61 : 1,031,945.77 = 408,258.86 : x
  2. Step 2: Convert to fraction form
    747,790.61/1,031,945.77 = 408,258.86/x
  3. Step 3: Cross multiply
    747,790.61x = 1,031,945.77 × 408,258.86
  4. Step 4: Simplify right side
    747,790.61x = 421,300,998,992.62
  5. Step 5: Solve for x
    x = 421,300,998,992.62/747,790.61
  6. Step 6: Final answer
    x = 563,394.35

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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.