Home / 763,698.10-1,053,869.28-457,943.20

Finding the Fourth Proportional to 763,698.10, 1,053,869.28 and 457,943.20

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Solution

The fourth proportional to 763,698.10, 1,053,869.28 and 457,943.20 is: 631,941.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,698.10 : 1,053,869.28 = 457,943.20 : x
  2. Step 2: Convert to fraction form
    763,698.10/1,053,869.28 = 457,943.20/x
  3. Step 3: Cross multiply
    763,698.10x = 1,053,869.28 × 457,943.20
  4. Step 4: Simplify right side
    763,698.10x = 482,612,268,688.87
  5. Step 5: Solve for x
    x = 482,612,268,688.87/763,698.10
  6. Step 6: Final answer
    x = 631,941.17

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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.