Home / 1,119,426.60-1,679,139.90-645,868.20

Finding the Fourth Proportional to 1,119,426.60, 1,679,139.90 and 645,868.20

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Solution

The fourth proportional to 1,119,426.60, 1,679,139.90 and 645,868.20 is: 968,802.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,426.60 : 1,679,139.90 = 645,868.20 : x
  2. Step 2: Convert to fraction form
    1,119,426.60/1,679,139.90 = 645,868.20/x
  3. Step 3: Cross multiply
    1,119,426.60x = 1,679,139.90 × 645,868.20
  4. Step 4: Simplify right side
    1,119,426.60x = 1,084,503,064,761.18
  5. Step 5: Solve for x
    x = 1,084,503,064,761.18/1,119,426.60
  6. Step 6: Final answer
    x = 968,802.30

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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.