Home / 740,972.46-1,022,543-401,440.71

Finding the Fourth Proportional to 740,972.46, 1,022,543 and 401,440.71

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Solution

The fourth proportional to 740,972.46, 1,022,543 and 401,440.71 is: 553,988.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,972.46 : 1,022,543 = 401,440.71 : x
  2. Step 2: Convert to fraction form
    740,972.46/1,022,543 = 401,440.71/x
  3. Step 3: Cross multiply
    740,972.46x = 1,022,543 × 401,440.71
  4. Step 4: Simplify right side
    740,972.46x = 410,490,387,925.53
  5. Step 5: Solve for x
    x = 410,490,387,925.53/740,972.46
  6. Step 6: Final answer
    x = 553,988.72

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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.