Home / 2,607,390.40-3,912,835.20-1,186,715.20

Finding the Fourth Proportional to 2,607,390.40, 3,912,835.20 and 1,186,715.20

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Solution

The fourth proportional to 2,607,390.40, 3,912,835.20 and 1,186,715.20 is: 1,780,869.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,607,390.40 : 3,912,835.20 = 1,186,715.20 : x
  2. Step 2: Convert to fraction form
    2,607,390.40/3,912,835.20 = 1,186,715.20/x
  3. Step 3: Cross multiply
    2,607,390.40x = 3,912,835.20 × 1,186,715.20
  4. Step 4: Simplify right side
    2,607,390.40x = 4,643,421,006,935.04
  5. Step 5: Solve for x
    x = 4,643,421,006,935.04/2,607,390.40
  6. Step 6: Final answer
    x = 1,780,869.10

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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.