Home / 917,246.40-1,375,408.80-418,046.40

Finding the Fourth Proportional to 917,246.40, 1,375,408.80 and 418,046.40

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Solution

The fourth proportional to 917,246.40, 1,375,408.80 and 418,046.40 is: 626,859.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,246.40 : 1,375,408.80 = 418,046.40 : x
  2. Step 2: Convert to fraction form
    917,246.40/1,375,408.80 = 418,046.40/x
  3. Step 3: Cross multiply
    917,246.40x = 1,375,408.80 × 418,046.40
  4. Step 4: Simplify right side
    917,246.40x = 574,984,697,368.32
  5. Step 5: Solve for x
    x = 574,984,697,368.32/917,246.40
  6. Step 6: Final answer
    x = 626,859.58

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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.