Home / 750,810.32-1,036,134.98-428,513.96

Finding the Fourth Proportional to 750,810.32, 1,036,134.98 and 428,513.96

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Solution

The fourth proportional to 750,810.32, 1,036,134.98 and 428,513.96 is: 591,358.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,810.32 : 1,036,134.98 = 428,513.96 : x
  2. Step 2: Convert to fraction form
    750,810.32/1,036,134.98 = 428,513.96/x
  3. Step 3: Cross multiply
    750,810.32x = 1,036,134.98 × 428,513.96
  4. Step 4: Simplify right side
    750,810.32x = 443,998,303,374.32
  5. Step 5: Solve for x
    x = 443,998,303,374.32/750,810.32
  6. Step 6: Final answer
    x = 591,358.82

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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.