Home / 723,106.14-997,934.51-400,829.82

Finding the Fourth Proportional to 723,106.14, 997,934.51 and 400,829.82

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Solution

The fourth proportional to 723,106.14, 997,934.51 and 400,829.82 is: 553,171.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,106.14 : 997,934.51 = 400,829.82 : x
  2. Step 2: Convert to fraction form
    723,106.14/997,934.51 = 400,829.82/x
  3. Step 3: Cross multiply
    723,106.14x = 997,934.51 × 400,829.82
  4. Step 4: Simplify right side
    723,106.14x = 400,001,908,010.94
  5. Step 5: Solve for x
    x = 400,001,908,010.94/723,106.14
  6. Step 6: Final answer
    x = 553,171.78

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1.5x scale

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.