Home / 1,853,820.90-2,780,731.35-788,897.70

Finding the Fourth Proportional to 1,853,820.90, 2,780,731.35 and 788,897.70

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Solution

The fourth proportional to 1,853,820.90, 2,780,731.35 and 788,897.70 is: 1,183,346.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,853,820.90 : 2,780,731.35 = 788,897.70 : x
  2. Step 2: Convert to fraction form
    1,853,820.90/2,780,731.35 = 788,897.70/x
  3. Step 3: Cross multiply
    1,853,820.90x = 2,780,731.35 × 788,897.70
  4. Step 4: Simplify right side
    1,853,820.90x = 2,193,712,566,332.90
  5. Step 5: Solve for x
    x = 2,193,712,566,332.90/1,853,820.90
  6. Step 6: Final answer
    x = 1,183,346.55

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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.