Home / 772,139.90-1,159,246.65-492,895.10

Finding the Fourth Proportional to 772,139.90, 1,159,246.65 and 492,895.10

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Solution

The fourth proportional to 772,139.90, 1,159,246.65 and 492,895.10 is: 740,004.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,139.90 : 1,159,246.65 = 492,895.10 : x
  2. Step 2: Convert to fraction form
    772,139.90/1,159,246.65 = 492,895.10/x
  3. Step 3: Cross multiply
    772,139.90x = 1,159,246.65 × 492,895.10
  4. Step 4: Simplify right side
    772,139.90x = 571,386,993,476.42
  5. Step 5: Solve for x
    x = 571,386,993,476.42/772,139.90
  6. Step 6: Final answer
    x = 740,004.49

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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.