Home / 1,354,298.06-1,868,919.38-742,439.70

Finding the Fourth Proportional to 1,354,298.06, 1,868,919.38 and 742,439.70

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Solution

The fourth proportional to 1,354,298.06, 1,868,919.38 and 742,439.70 is: 1,024,560.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,354,298.06 : 1,868,919.38 = 742,439.70 : x
  2. Step 2: Convert to fraction form
    1,354,298.06/1,868,919.38 = 742,439.70/x
  3. Step 3: Cross multiply
    1,354,298.06x = 1,868,919.38 × 742,439.70
  4. Step 4: Simplify right side
    1,354,298.06x = 1,387,559,943,811.39
  5. Step 5: Solve for x
    x = 1,387,559,943,811.39/1,354,298.06
  6. Step 6: Final answer
    x = 1,024,560.24

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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.