Home / 1,240,346.49-1,857,807.18-879,423.32

Finding the Fourth Proportional to 1,240,346.49, 1,857,807.18 and 879,423.32

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Solution

The fourth proportional to 1,240,346.49, 1,857,807.18 and 879,423.32 is: 1,317,211.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,346.49 : 1,857,807.18 = 879,423.32 : x
  2. Step 2: Convert to fraction form
    1,240,346.49/1,857,807.18 = 879,423.32/x
  3. Step 3: Cross multiply
    1,240,346.49x = 1,857,807.18 × 879,423.32
  4. Step 4: Simplify right side
    1,240,346.49x = 1,633,798,960,257.03
  5. Step 5: Solve for x
    x = 1,633,798,960,257.03/1,240,346.49
  6. Step 6: Final answer
    x = 1,317,211.74

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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.