Home / 1,340,985.84-2,011,600.35-442,430.16

Finding the Fourth Proportional to 1,340,985.84, 2,011,600.35 and 442,430.16

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Solution

The fourth proportional to 1,340,985.84, 2,011,600.35 and 442,430.16 is: 663,685.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,985.84 : 2,011,600.35 = 442,430.16 : x
  2. Step 2: Convert to fraction form
    1,340,985.84/2,011,600.35 = 442,430.16/x
  3. Step 3: Cross multiply
    1,340,985.84x = 2,011,600.35 × 442,430.16
  4. Step 4: Simplify right side
    1,340,985.84x = 889,992,664,706.56
  5. Step 5: Solve for x
    x = 889,992,664,706.56/1,340,985.84
  6. Step 6: Final answer
    x = 663,685.36

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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.