Home / 976,981.20-1,465,471.80-578,072.40

Finding the Fourth Proportional to 976,981.20, 1,465,471.80 and 578,072.40

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Solution

The fourth proportional to 976,981.20, 1,465,471.80 and 578,072.40 is: 867,108.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,981.20 : 1,465,471.80 = 578,072.40 : x
  2. Step 2: Convert to fraction form
    976,981.20/1,465,471.80 = 578,072.40/x
  3. Step 3: Cross multiply
    976,981.20x = 1,465,471.80 × 578,072.40
  4. Step 4: Simplify right side
    976,981.20x = 847,148,800,558.32
  5. Step 5: Solve for x
    x = 847,148,800,558.32/976,981.20
  6. Step 6: Final answer
    x = 867,108.60

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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.