Home / 723,127.50-997,811.19-400,837.50

Finding the Fourth Proportional to 723,127.50, 997,811.19 and 400,837.50

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Solution

The fourth proportional to 723,127.50, 997,811.19 and 400,837.50 is: 553,097.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,127.50 : 997,811.19 = 400,837.50 : x
  2. Step 2: Convert to fraction form
    723,127.50/997,811.19 = 400,837.50/x
  3. Step 3: Cross multiply
    723,127.50x = 997,811.19 × 400,837.50
  4. Step 4: Simplify right side
    723,127.50x = 399,960,142,871.63
  5. Step 5: Solve for x
    x = 399,960,142,871.63/723,127.50
  6. Step 6: Final answer
    x = 553,097.68

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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.