Home / 971,329.12-1,340,401.06-535,763.72

Finding the Fourth Proportional to 971,329.12, 1,340,401.06 and 535,763.72

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Solution

The fourth proportional to 971,329.12, 1,340,401.06 and 535,763.72 is: 739,335.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,329.12 : 1,340,401.06 = 535,763.72 : x
  2. Step 2: Convert to fraction form
    971,329.12/1,340,401.06 = 535,763.72/x
  3. Step 3: Cross multiply
    971,329.12x = 1,340,401.06 × 535,763.72
  4. Step 4: Simplify right side
    971,329.12x = 718,138,258,197.54
  5. Step 5: Solve for x
    x = 718,138,258,197.54/971,329.12
  6. Step 6: Final answer
    x = 739,335.66

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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.