Home / 702,948.10-1,051,964.55-643,965.70

Finding the Fourth Proportional to 702,948.10, 1,051,964.55 and 643,965.70

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Solution

The fourth proportional to 702,948.10, 1,051,964.55 and 643,965.70 is: 963,697.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,948.10 : 1,051,964.55 = 643,965.70 : x
  2. Step 2: Convert to fraction form
    702,948.10/1,051,964.55 = 643,965.70/x
  3. Step 3: Cross multiply
    702,948.10x = 1,051,964.55 × 643,965.70
  4. Step 4: Simplify right side
    702,948.10x = 677,429,087,815.94
  5. Step 5: Solve for x
    x = 677,429,087,815.94/702,948.10
  6. Step 6: Final answer
    x = 963,697.16

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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.