Home / 765,722.77-1,148,756.98-253,386.59

Finding the Fourth Proportional to 765,722.77, 1,148,756.98 and 253,386.59

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Solution

The fourth proportional to 765,722.77, 1,148,756.98 and 253,386.59 is: 380,137.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,722.77 : 1,148,756.98 = 253,386.59 : x
  2. Step 2: Convert to fraction form
    765,722.77/1,148,756.98 = 253,386.59/x
  3. Step 3: Cross multiply
    765,722.77x = 1,148,756.98 × 253,386.59
  4. Step 4: Simplify right side
    765,722.77x = 291,079,613,900.90
  5. Step 5: Solve for x
    x = 291,079,613,900.90/765,722.77
  6. Step 6: Final answer
    x = 380,137.07

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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.