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Finding the Fourth Proportional to 656,903.40, 985,355.10 and 550,615.20

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Solution

The fourth proportional to 656,903.40, 985,355.10 and 550,615.20 is: 825,922.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,903.40 : 985,355.10 = 550,615.20 : x
  2. Step 2: Convert to fraction form
    656,903.40/985,355.10 = 550,615.20/x
  3. Step 3: Cross multiply
    656,903.40x = 985,355.10 × 550,615.20
  4. Step 4: Simplify right side
    656,903.40x = 542,551,495,457.52
  5. Step 5: Solve for x
    x = 542,551,495,457.52/656,903.40
  6. Step 6: Final answer
    x = 825,922.80

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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.