Home / 1,138,159.80-1,707,239.70-571,289.40

Finding the Fourth Proportional to 1,138,159.80, 1,707,239.70 and 571,289.40

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Solution

The fourth proportional to 1,138,159.80, 1,707,239.70 and 571,289.40 is: 856,934.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,159.80 : 1,707,239.70 = 571,289.40 : x
  2. Step 2: Convert to fraction form
    1,138,159.80/1,707,239.70 = 571,289.40/x
  3. Step 3: Cross multiply
    1,138,159.80x = 1,707,239.70 × 571,289.40
  4. Step 4: Simplify right side
    1,138,159.80x = 975,327,943,869.18
  5. Step 5: Solve for x
    x = 975,327,943,869.18/1,138,159.80
  6. Step 6: Final answer
    x = 856,934.10

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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.