Home / 1,218,330.40-1,823,348.40-1,069,031.20

Finding the Fourth Proportional to 1,218,330.40, 1,823,348.40 and 1,069,031.20

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Solution

The fourth proportional to 1,218,330.40, 1,823,348.40 and 1,069,031.20 is: 1,599,907.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,330.40 : 1,823,348.40 = 1,069,031.20 : x
  2. Step 2: Convert to fraction form
    1,218,330.40/1,823,348.40 = 1,069,031.20/x
  3. Step 3: Cross multiply
    1,218,330.40x = 1,823,348.40 × 1,069,031.20
  4. Step 4: Simplify right side
    1,218,330.40x = 1,949,216,328,070.08
  5. Step 5: Solve for x
    x = 1,949,216,328,070.08/1,218,330.40
  6. Step 6: Final answer
    x = 1,599,907.81

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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.