Home / 710,499.70-1,065,749.55-486,550.90

Finding the Fourth Proportional to 710,499.70, 1,065,749.55 and 486,550.90

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Solution

The fourth proportional to 710,499.70, 1,065,749.55 and 486,550.90 is: 729,826.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,499.70 : 1,065,749.55 = 486,550.90 : x
  2. Step 2: Convert to fraction form
    710,499.70/1,065,749.55 = 486,550.90/x
  3. Step 3: Cross multiply
    710,499.70x = 1,065,749.55 × 486,550.90
  4. Step 4: Simplify right side
    710,499.70x = 518,541,402,727.10
  5. Step 5: Solve for x
    x = 518,541,402,727.10/710,499.70
  6. Step 6: Final answer
    x = 729,826.35

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Similar ratio
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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.