Home / 1,215,542.15-1,823,384.59-457,390.18

Finding the Fourth Proportional to 1,215,542.15, 1,823,384.59 and 457,390.18

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Solution

The fourth proportional to 1,215,542.15, 1,823,384.59 and 457,390.18 is: 686,112.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,542.15 : 1,823,384.59 = 457,390.18 : x
  2. Step 2: Convert to fraction form
    1,215,542.15/1,823,384.59 = 457,390.18/x
  3. Step 3: Cross multiply
    1,215,542.15x = 1,823,384.59 × 457,390.18
  4. Step 4: Simplify right side
    1,215,542.15x = 833,998,210,587.48
  5. Step 5: Solve for x
    x = 833,998,210,587.48/1,215,542.15
  6. Step 6: Final answer
    x = 686,112.13

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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.