Home / 1,021,684.52-1,532,876.88-390,778.76

Finding the Fourth Proportional to 1,021,684.52, 1,532,876.88 and 390,778.76

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Solution

The fourth proportional to 1,021,684.52, 1,532,876.88 and 390,778.76 is: 586,302.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,684.52 : 1,532,876.88 = 390,778.76 : x
  2. Step 2: Convert to fraction form
    1,021,684.52/1,532,876.88 = 390,778.76/x
  3. Step 3: Cross multiply
    1,021,684.52x = 1,532,876.88 × 390,778.76
  4. Step 4: Simplify right side
    1,021,684.52x = 599,015,726,399.07
  5. Step 5: Solve for x
    x = 599,015,726,399.07/1,021,684.52
  6. Step 6: Final answer
    x = 586,302.05

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1.5x scale

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.