Home / 718,263.27-991,210.10-395,984.93

Finding the Fourth Proportional to 718,263.27, 991,210.10 and 395,984.93

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Solution

The fourth proportional to 718,263.27, 991,210.10 and 395,984.93 is: 546,462.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,263.27 : 991,210.10 = 395,984.93 : x
  2. Step 2: Convert to fraction form
    718,263.27/991,210.10 = 395,984.93/x
  3. Step 3: Cross multiply
    718,263.27x = 991,210.10 × 395,984.93
  4. Step 4: Simplify right side
    718,263.27x = 392,504,255,127.82
  5. Step 5: Solve for x
    x = 392,504,255,127.82/718,263.27
  6. Step 6: Final answer
    x = 546,462.94

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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.