Home / 840,552.56-1,159,915.28-478,064.60

Finding the Fourth Proportional to 840,552.56, 1,159,915.28 and 478,064.60

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Solution

The fourth proportional to 840,552.56, 1,159,915.28 and 478,064.60 is: 659,702.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,552.56 : 1,159,915.28 = 478,064.60 : x
  2. Step 2: Convert to fraction form
    840,552.56/1,159,915.28 = 478,064.60/x
  3. Step 3: Cross multiply
    840,552.56x = 1,159,915.28 × 478,064.60
  4. Step 4: Simplify right side
    840,552.56x = 554,514,430,526.87
  5. Step 5: Solve for x
    x = 554,514,430,526.87/840,552.56
  6. Step 6: Final answer
    x = 659,702.27

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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.