Home / 1,386,457.92-1,912,288.32-876,666.24

Finding the Fourth Proportional to 1,386,457.92, 1,912,288.32 and 876,666.24

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Solution

The fourth proportional to 1,386,457.92, 1,912,288.32 and 876,666.24 is: 1,209,152.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,457.92 : 1,912,288.32 = 876,666.24 : x
  2. Step 2: Convert to fraction form
    1,386,457.92/1,912,288.32 = 876,666.24/x
  3. Step 3: Cross multiply
    1,386,457.92x = 1,912,288.32 × 876,666.24
  4. Step 4: Simplify right side
    1,386,457.92x = 1,676,438,611,290.32
  5. Step 5: Solve for x
    x = 1,676,438,611,290.32/1,386,457.92
  6. Step 6: Final answer
    x = 1,209,152.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.