Home / 611,746.43-844,330.84-390,842.42

Finding the Fourth Proportional to 611,746.43, 844,330.84 and 390,842.42

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Solution

The fourth proportional to 611,746.43, 844,330.84 and 390,842.42 is: 539,439.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,746.43 : 844,330.84 = 390,842.42 : x
  2. Step 2: Convert to fraction form
    611,746.43/844,330.84 = 390,842.42/x
  3. Step 3: Cross multiply
    611,746.43x = 844,330.84 × 390,842.42
  4. Step 4: Simplify right side
    611,746.43x = 330,000,303,587.47
  5. Step 5: Solve for x
    x = 330,000,303,587.47/611,746.43
  6. Step 6: Final answer
    x = 539,439.69

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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.