Home / 723,811.40-998,892.48-401,521.70

Finding the Fourth Proportional to 723,811.40, 998,892.48 and 401,521.70

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Solution

The fourth proportional to 723,811.40, 998,892.48 and 401,521.70 is: 554,118.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,811.40 : 998,892.48 = 401,521.70 : x
  2. Step 2: Convert to fraction form
    723,811.40/998,892.48 = 401,521.70/x
  3. Step 3: Cross multiply
    723,811.40x = 998,892.48 × 401,521.70
  4. Step 4: Simplify right side
    723,811.40x = 401,077,006,686.82
  5. Step 5: Solve for x
    x = 401,077,006,686.82/723,811.40
  6. Step 6: Final answer
    x = 554,118.11

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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.