Home / 1,019,812.44-1,528,595.76-420,444.84

Finding the Fourth Proportional to 1,019,812.44, 1,528,595.76 and 420,444.84

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Solution

The fourth proportional to 1,019,812.44, 1,528,595.76 and 420,444.84 is: 630,204.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,812.44 : 1,528,595.76 = 420,444.84 : x
  2. Step 2: Convert to fraction form
    1,019,812.44/1,528,595.76 = 420,444.84/x
  3. Step 3: Cross multiply
    1,019,812.44x = 1,528,595.76 × 420,444.84
  4. Step 4: Simplify right side
    1,019,812.44x = 642,690,199,737.88
  5. Step 5: Solve for x
    x = 642,690,199,737.88/1,019,812.44
  6. Step 6: Final answer
    x = 630,204.31

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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.