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Finding the Fourth Proportional to 675,678.16, 932,372.36 and 457,442.90

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Solution

The fourth proportional to 675,678.16, 932,372.36 and 457,442.90 is: 631,228.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,678.16 : 932,372.36 = 457,442.90 : x
  2. Step 2: Convert to fraction form
    675,678.16/932,372.36 = 457,442.90/x
  3. Step 3: Cross multiply
    675,678.16x = 932,372.36 × 457,442.90
  4. Step 4: Simplify right side
    675,678.16x = 426,507,116,238.24
  5. Step 5: Solve for x
    x = 426,507,116,238.24/675,678.16
  6. Step 6: Final answer
    x = 631,228.21

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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.