Home / 898,981.66-1,240,632.40-517,008.74

Finding the Fourth Proportional to 898,981.66, 1,240,632.40 and 517,008.74

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Solution

The fourth proportional to 898,981.66, 1,240,632.40 and 517,008.74 is: 713,493.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,981.66 : 1,240,632.40 = 517,008.74 : x
  2. Step 2: Convert to fraction form
    898,981.66/1,240,632.40 = 517,008.74/x
  3. Step 3: Cross multiply
    898,981.66x = 1,240,632.40 × 517,008.74
  4. Step 4: Simplify right side
    898,981.66x = 641,417,793,927.18
  5. Step 5: Solve for x
    x = 641,417,793,927.18/898,981.66
  6. Step 6: Final answer
    x = 713,493.75

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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.