Home / 1,535,990.08-2,119,717.20-838,309

Finding the Fourth Proportional to 1,535,990.08, 2,119,717.20 and 838,309

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Solution

The fourth proportional to 1,535,990.08, 2,119,717.20 and 838,309 is: 1,156,894.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,535,990.08 : 2,119,717.20 = 838,309 : x
  2. Step 2: Convert to fraction form
    1,535,990.08/2,119,717.20 = 838,309/x
  3. Step 3: Cross multiply
    1,535,990.08x = 2,119,717.20 × 838,309
  4. Step 4: Simplify right side
    1,535,990.08x = 1,776,978,006,214.80
  5. Step 5: Solve for x
    x = 1,776,978,006,214.80/1,535,990.08
  6. Step 6: Final answer
    x = 1,156,894.19

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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.