Home / 747,603.64-1,031,703.78-408,064.60

Finding the Fourth Proportional to 747,603.64, 1,031,703.78 and 408,064.60

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Solution

The fourth proportional to 747,603.64, 1,031,703.78 and 408,064.60 is: 563,135.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,603.64 : 1,031,703.78 = 408,064.60 : x
  2. Step 2: Convert to fraction form
    747,603.64/1,031,703.78 = 408,064.60/x
  3. Step 3: Cross multiply
    747,603.64x = 1,031,703.78 × 408,064.60
  4. Step 4: Simplify right side
    747,603.64x = 421,001,790,304.19
  5. Step 5: Solve for x
    x = 421,001,790,304.19/747,603.64
  6. Step 6: Final answer
    x = 563,135.02

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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.