Home / 656,915.16-906,789.48-430,575.24

Finding the Fourth Proportional to 656,915.16, 906,789.48 and 430,575.24

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Solution

The fourth proportional to 656,915.16, 906,789.48 and 430,575.24 is: 594,355.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,915.16 : 906,789.48 = 430,575.24 : x
  2. Step 2: Convert to fraction form
    656,915.16/906,789.48 = 430,575.24/x
  3. Step 3: Cross multiply
    656,915.16x = 906,789.48 × 430,575.24
  4. Step 4: Simplify right side
    656,915.16x = 390,441,097,980.48
  5. Step 5: Solve for x
    x = 390,441,097,980.48/656,915.16
  6. Step 6: Final answer
    x = 594,355.44

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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.