Home / 1,317,127.76-1,974,274.29-861,547.44

Finding the Fourth Proportional to 1,317,127.76, 1,974,274.29 and 861,547.44

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Solution

The fourth proportional to 1,317,127.76, 1,974,274.29 and 861,547.44 is: 1,291,394.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,127.76 : 1,974,274.29 = 861,547.44 : x
  2. Step 2: Convert to fraction form
    1,317,127.76/1,974,274.29 = 861,547.44/x
  3. Step 3: Cross multiply
    1,317,127.76x = 1,974,274.29 × 861,547.44
  4. Step 4: Simplify right side
    1,317,127.76x = 1,700,930,960,407.32
  5. Step 5: Solve for x
    x = 1,700,930,960,407.32/1,317,127.76
  6. Step 6: Final answer
    x = 1,291,394.06

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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.