Home / 1,376,509.70-2,064,764.55-429,976.10

Finding the Fourth Proportional to 1,376,509.70, 2,064,764.55 and 429,976.10

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Solution

The fourth proportional to 1,376,509.70, 2,064,764.55 and 429,976.10 is: 644,964.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,509.70 : 2,064,764.55 = 429,976.10 : x
  2. Step 2: Convert to fraction form
    1,376,509.70/2,064,764.55 = 429,976.10/x
  3. Step 3: Cross multiply
    1,376,509.70x = 2,064,764.55 × 429,976.10
  4. Step 4: Simplify right side
    1,376,509.70x = 887,799,408,627.26
  5. Step 5: Solve for x
    x = 887,799,408,627.26/1,376,509.70
  6. Step 6: Final answer
    x = 644,964.15

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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.