Home / 1,020,218.30-1,528,577.85-486,590.30

Finding the Fourth Proportional to 1,020,218.30, 1,528,577.85 and 486,590.30

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Solution

The fourth proportional to 1,020,218.30, 1,528,577.85 and 486,590.30 is: 729,050.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,218.30 : 1,528,577.85 = 486,590.30 : x
  2. Step 2: Convert to fraction form
    1,020,218.30/1,528,577.85 = 486,590.30/x
  3. Step 3: Cross multiply
    1,020,218.30x = 1,528,577.85 × 486,590.30
  4. Step 4: Simplify right side
    1,020,218.30x = 743,791,154,604.86
  5. Step 5: Solve for x
    x = 743,791,154,604.86/1,020,218.30
  6. Step 6: Final answer
    x = 729,050.98

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Double scale
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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.