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Finding the Fourth Proportional to 438,018.96, 604,248.93 and 282,916.92

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Solution

The fourth proportional to 438,018.96, 604,248.93 and 282,916.92 is: 390,285.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,018.96 : 604,248.93 = 282,916.92 : x
  2. Step 2: Convert to fraction form
    438,018.96/604,248.93 = 282,916.92/x
  3. Step 3: Cross multiply
    438,018.96x = 604,248.93 × 282,916.92
  4. Step 4: Simplify right side
    438,018.96x = 170,952,246,188.90
  5. Step 5: Solve for x
    x = 170,952,246,188.90/438,018.96
  6. Step 6: Final answer
    x = 390,285.04

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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.