Home / 1,019,812.16-1,529,499.54-420,617.90

Finding the Fourth Proportional to 1,019,812.16, 1,529,499.54 and 420,617.90

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Solution

The fourth proportional to 1,019,812.16, 1,529,499.54 and 420,617.90 is: 630,836.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,812.16 : 1,529,499.54 = 420,617.90 : x
  2. Step 2: Convert to fraction form
    1,019,812.16/1,529,499.54 = 420,617.90/x
  3. Step 3: Cross multiply
    1,019,812.16x = 1,529,499.54 × 420,617.90
  4. Step 4: Simplify right side
    1,019,812.16x = 643,334,884,565.77
  5. Step 5: Solve for x
    x = 643,334,884,565.77/1,019,812.16
  6. Step 6: Final answer
    x = 630,836.65

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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.