Home / 1,218,000.20-1,823,501.10-745,608.20

Finding the Fourth Proportional to 1,218,000.20, 1,823,501.10 and 745,608.20

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Solution

The fourth proportional to 1,218,000.20, 1,823,501.10 and 745,608.20 is: 1,116,270.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,000.20 : 1,823,501.10 = 745,608.20 : x
  2. Step 2: Convert to fraction form
    1,218,000.20/1,823,501.10 = 745,608.20/x
  3. Step 3: Cross multiply
    1,218,000.20x = 1,823,501.10 × 745,608.20
  4. Step 4: Simplify right side
    1,218,000.20x = 1,359,617,372,869.02
  5. Step 5: Solve for x
    x = 1,359,617,372,869.02/1,218,000.20
  6. Step 6: Final answer
    x = 1,116,270.24

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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.