Home / 891,814.60-1,337,721.90-418,547.80

Finding the Fourth Proportional to 891,814.60, 1,337,721.90 and 418,547.80

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Solution

The fourth proportional to 891,814.60, 1,337,721.90 and 418,547.80 is: 627,821.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,814.60 : 1,337,721.90 = 418,547.80 : x
  2. Step 2: Convert to fraction form
    891,814.60/1,337,721.90 = 418,547.80/x
  3. Step 3: Cross multiply
    891,814.60x = 1,337,721.90 × 418,547.80
  4. Step 4: Simplify right side
    891,814.60x = 559,900,558,256.82
  5. Step 5: Solve for x
    x = 559,900,558,256.82/891,814.60
  6. Step 6: Final answer
    x = 627,821.70

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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.