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Finding the Fourth Proportional to 650,294.40, 974,059.20 and 426,345.60

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Solution

The fourth proportional to 650,294.40, 974,059.20 and 426,345.60 is: 638,612.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,294.40 : 974,059.20 = 426,345.60 : x
  2. Step 2: Convert to fraction form
    650,294.40/974,059.20 = 426,345.60/x
  3. Step 3: Cross multiply
    650,294.40x = 974,059.20 × 426,345.60
  4. Step 4: Simplify right side
    650,294.40x = 415,285,854,059.52
  5. Step 5: Solve for x
    x = 415,285,854,059.52/650,294.40
  6. Step 6: Final answer
    x = 638,612.07

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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.