Home / 849,468.46-1,274,990.28-429,039.58

Finding the Fourth Proportional to 849,468.46, 1,274,990.28 and 429,039.58

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Solution

The fourth proportional to 849,468.46, 1,274,990.28 and 429,039.58 is: 643,957.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,468.46 : 1,274,990.28 = 429,039.58 : x
  2. Step 2: Convert to fraction form
    849,468.46/1,274,990.28 = 429,039.58/x
  3. Step 3: Cross multiply
    849,468.46x = 1,274,990.28 × 429,039.58
  4. Step 4: Simplify right side
    849,468.46x = 547,021,294,235.28
  5. Step 5: Solve for x
    x = 547,021,294,235.28/849,468.46
  6. Step 6: Final answer
    x = 643,957.16

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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.