Home / 426,280.32-588,312.72-318,665.34

Finding the Fourth Proportional to 426,280.32, 588,312.72 and 318,665.34

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Solution

The fourth proportional to 426,280.32, 588,312.72 and 318,665.34 is: 439,792.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,280.32 : 588,312.72 = 318,665.34 : x
  2. Step 2: Convert to fraction form
    426,280.32/588,312.72 = 318,665.34/x
  3. Step 3: Cross multiply
    426,280.32x = 588,312.72 × 318,665.34
  4. Step 4: Simplify right side
    426,280.32x = 187,474,872,945.13
  5. Step 5: Solve for x
    x = 187,474,872,945.13/426,280.32
  6. Step 6: Final answer
    x = 439,792.47

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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.