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Finding the Fourth Proportional to 1,260,948.30, 1,888,312.05 and 837,933.90

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Solution

The fourth proportional to 1,260,948.30, 1,888,312.05 and 837,933.90 is: 1,254,833.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,948.30 : 1,888,312.05 = 837,933.90 : x
  2. Step 2: Convert to fraction form
    1,260,948.30/1,888,312.05 = 837,933.90/x
  3. Step 3: Cross multiply
    1,260,948.30x = 1,888,312.05 × 837,933.90
  4. Step 4: Simplify right side
    1,260,948.30x = 1,582,280,680,473.50
  5. Step 5: Solve for x
    x = 1,582,280,680,473.50/1,260,948.30
  6. Step 6: Final answer
    x = 1,254,833.91

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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.