Home / 763,264.80-1,053,637.20-495,079.20

Finding the Fourth Proportional to 763,264.80, 1,053,637.20 and 495,079.20

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Solution

The fourth proportional to 763,264.80, 1,053,637.20 and 495,079.20 is: 683,424.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,264.80 : 1,053,637.20 = 495,079.20 : x
  2. Step 2: Convert to fraction form
    763,264.80/1,053,637.20 = 495,079.20/x
  3. Step 3: Cross multiply
    763,264.80x = 1,053,637.20 × 495,079.20
  4. Step 4: Simplify right side
    763,264.80x = 521,633,862,066.24
  5. Step 5: Solve for x
    x = 521,633,862,066.24/763,264.80
  6. Step 6: Final answer
    x = 683,424.50

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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.