Home / 840,105.07-1,159,006.25-486,253.10

Finding the Fourth Proportional to 840,105.07, 1,159,006.25 and 486,253.10

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Solution

The fourth proportional to 840,105.07, 1,159,006.25 and 486,253.10 is: 670,833.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,105.07 : 1,159,006.25 = 486,253.10 : x
  2. Step 2: Convert to fraction form
    840,105.07/1,159,006.25 = 486,253.10/x
  3. Step 3: Cross multiply
    840,105.07x = 1,159,006.25 × 486,253.10
  4. Step 4: Simplify right side
    840,105.07x = 563,570,386,095.02
  5. Step 5: Solve for x
    x = 563,570,386,095.02/840,105.07
  6. Step 6: Final answer
    x = 670,833.22

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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.