Home / 1,243,830.40-1,865,878.88-345,275.92

Finding the Fourth Proportional to 1,243,830.40, 1,865,878.88 and 345,275.92

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Solution

The fourth proportional to 1,243,830.40, 1,865,878.88 and 345,275.92 is: 517,950.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,830.40 : 1,865,878.88 = 345,275.92 : x
  2. Step 2: Convert to fraction form
    1,243,830.40/1,865,878.88 = 345,275.92/x
  3. Step 3: Cross multiply
    1,243,830.40x = 1,865,878.88 × 345,275.92
  4. Step 4: Simplify right side
    1,243,830.40x = 644,243,046,900.57
  5. Step 5: Solve for x
    x = 644,243,046,900.57/1,243,830.40
  6. Step 6: Final answer
    x = 517,950.88

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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.