Home / 1,154,686.32-1,593,501.12-645,390

Finding the Fourth Proportional to 1,154,686.32, 1,593,501.12 and 645,390

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Solution

The fourth proportional to 1,154,686.32, 1,593,501.12 and 645,390 is: 890,657.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,154,686.32 : 1,593,501.12 = 645,390 : x
  2. Step 2: Convert to fraction form
    1,154,686.32/1,593,501.12 = 645,390/x
  3. Step 3: Cross multiply
    1,154,686.32x = 1,593,501.12 × 645,390
  4. Step 4: Simplify right side
    1,154,686.32x = 1,028,429,687,836.80
  5. Step 5: Solve for x
    x = 1,028,429,687,836.80/1,154,686.32
  6. Step 6: Final answer
    x = 890,657.20

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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.