Home / 1,078,412.10-1,617,618.15-742,488.90

Finding the Fourth Proportional to 1,078,412.10, 1,617,618.15 and 742,488.90

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Solution

The fourth proportional to 1,078,412.10, 1,617,618.15 and 742,488.90 is: 1,113,733.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,412.10 : 1,617,618.15 = 742,488.90 : x
  2. Step 2: Convert to fraction form
    1,078,412.10/1,617,618.15 = 742,488.90/x
  3. Step 3: Cross multiply
    1,078,412.10x = 1,617,618.15 × 742,488.90
  4. Step 4: Simplify right side
    1,078,412.10x = 1,201,063,520,813.53
  5. Step 5: Solve for x
    x = 1,201,063,520,813.53/1,078,412.10
  6. Step 6: Final answer
    x = 1,113,733.35

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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.