Home / 714,551.53-1,071,011.95-287,814.22

Finding the Fourth Proportional to 714,551.53, 1,071,011.95 and 287,814.22

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Solution

The fourth proportional to 714,551.53, 1,071,011.95 and 287,814.22 is: 431,392.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,551.53 : 1,071,011.95 = 287,814.22 : x
  2. Step 2: Convert to fraction form
    714,551.53/1,071,011.95 = 287,814.22/x
  3. Step 3: Cross multiply
    714,551.53x = 1,071,011.95 × 287,814.22
  4. Step 4: Simplify right side
    714,551.53x = 308,252,468,999.93
  5. Step 5: Solve for x
    x = 308,252,468,999.93/714,551.53
  6. Step 6: Final answer
    x = 431,392.92

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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.