Home / 1,038,490.30-1,557,735.45-637,831.90

Finding the Fourth Proportional to 1,038,490.30, 1,557,735.45 and 637,831.90

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Solution

The fourth proportional to 1,038,490.30, 1,557,735.45 and 637,831.90 is: 956,747.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,490.30 : 1,557,735.45 = 637,831.90 : x
  2. Step 2: Convert to fraction form
    1,038,490.30/1,557,735.45 = 637,831.90/x
  3. Step 3: Cross multiply
    1,038,490.30x = 1,557,735.45 × 637,831.90
  4. Step 4: Simplify right side
    1,038,490.30x = 993,573,361,770.86
  5. Step 5: Solve for x
    x = 993,573,361,770.86/1,038,490.30
  6. Step 6: Final answer
    x = 956,747.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.