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Finding the Fourth Proportional to 650,259.40, 974,006.70 and 426,310.60

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Solution

The fourth proportional to 650,259.40, 974,006.70 and 426,310.60 is: 638,559.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,259.40 : 974,006.70 = 426,310.60 : x
  2. Step 2: Convert to fraction form
    650,259.40/974,006.70 = 426,310.60/x
  3. Step 3: Cross multiply
    650,259.40x = 974,006.70 × 426,310.60
  4. Step 4: Simplify right side
    650,259.40x = 415,229,380,681.02
  5. Step 5: Solve for x
    x = 415,229,380,681.02/650,259.40
  6. Step 6: Final answer
    x = 638,559.60

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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.