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Finding the Fourth Proportional to 426,061.60, 639,092.40 and 358,410.40

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Solution

The fourth proportional to 426,061.60, 639,092.40 and 358,410.40 is: 537,615.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,061.60 : 639,092.40 = 358,410.40 : x
  2. Step 2: Convert to fraction form
    426,061.60/639,092.40 = 358,410.40/x
  3. Step 3: Cross multiply
    426,061.60x = 639,092.40 × 358,410.40
  4. Step 4: Simplify right side
    426,061.60x = 229,057,362,720.96
  5. Step 5: Solve for x
    x = 229,057,362,720.96/426,061.60
  6. Step 6: Final answer
    x = 537,615.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.