Home / 913,041.50-1,260,400.85-545,648.28

Finding the Fourth Proportional to 913,041.50, 1,260,400.85 and 545,648.28

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Solution

The fourth proportional to 913,041.50, 1,260,400.85 and 545,648.28 is: 753,235.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,041.50 : 1,260,400.85 = 545,648.28 : x
  2. Step 2: Convert to fraction form
    913,041.50/1,260,400.85 = 545,648.28/x
  3. Step 3: Cross multiply
    913,041.50x = 1,260,400.85 × 545,648.28
  4. Step 4: Simplify right side
    913,041.50x = 687,735,555,913.04
  5. Step 5: Solve for x
    x = 687,735,555,913.04/913,041.50
  6. Step 6: Final answer
    x = 753,235.81

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.