Home / 1,385,298.72-2,078,155.80-486,582.06

Finding the Fourth Proportional to 1,385,298.72, 2,078,155.80 and 486,582.06

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Solution

The fourth proportional to 1,385,298.72, 2,078,155.80 and 486,582.06 is: 729,946.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,298.72 : 2,078,155.80 = 486,582.06 : x
  2. Step 2: Convert to fraction form
    1,385,298.72/2,078,155.80 = 486,582.06/x
  3. Step 3: Cross multiply
    1,385,298.72x = 2,078,155.80 × 486,582.06
  4. Step 4: Simplify right side
    1,385,298.72x = 1,011,193,330,164.95
  5. Step 5: Solve for x
    x = 1,011,193,330,164.95/1,385,298.72
  6. Step 6: Final answer
    x = 729,946.05

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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.