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Finding the Fourth Proportional to 650,291.40, 974,054.70 and 426,342.60

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Solution

The fourth proportional to 650,291.40, 974,054.70 and 426,342.60 is: 638,607.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,291.40 : 974,054.70 = 426,342.60 : x
  2. Step 2: Convert to fraction form
    650,291.40/974,054.70 = 426,342.60/x
  3. Step 3: Cross multiply
    650,291.40x = 974,054.70 × 426,342.60
  4. Step 4: Simplify right side
    650,291.40x = 415,281,013,340.22
  5. Step 5: Solve for x
    x = 415,281,013,340.22/650,291.40
  6. Step 6: Final answer
    x = 638,607.57

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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.