Home / 1,385,929.19-2,078,968.30-439,373.72

Finding the Fourth Proportional to 1,385,929.19, 2,078,968.30 and 439,373.72

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Solution

The fourth proportional to 1,385,929.19, 2,078,968.30 and 439,373.72 is: 659,084.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,929.19 : 2,078,968.30 = 439,373.72 : x
  2. Step 2: Convert to fraction form
    1,385,929.19/2,078,968.30 = 439,373.72/x
  3. Step 3: Cross multiply
    1,385,929.19x = 2,078,968.30 × 439,373.72
  4. Step 4: Simplify right side
    1,385,929.19x = 913,444,024,239.80
  5. Step 5: Solve for x
    x = 913,444,024,239.80/1,385,929.19
  6. Step 6: Final answer
    x = 659,084.20

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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.