Home / 862,278.79-1,189,981.47-480,305.47

Finding the Fourth Proportional to 862,278.79, 1,189,981.47 and 480,305.47

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Solution

The fourth proportional to 862,278.79, 1,189,981.47 and 480,305.47 is: 662,842.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,278.79 : 1,189,981.47 = 480,305.47 : x
  2. Step 2: Convert to fraction form
    862,278.79/1,189,981.47 = 480,305.47/x
  3. Step 3: Cross multiply
    862,278.79x = 1,189,981.47 × 480,305.47
  4. Step 4: Simplify right side
    862,278.79x = 571,554,609,239.64
  5. Step 5: Solve for x
    x = 571,554,609,239.64/862,278.79
  6. Step 6: Final answer
    x = 662,842.01

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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.