Home / 1,008,140.20-1,512,210.30-906,663.40

Finding the Fourth Proportional to 1,008,140.20, 1,512,210.30 and 906,663.40

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Solution

The fourth proportional to 1,008,140.20, 1,512,210.30 and 906,663.40 is: 1,359,995.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,140.20 : 1,512,210.30 = 906,663.40 : x
  2. Step 2: Convert to fraction form
    1,008,140.20/1,512,210.30 = 906,663.40/x
  3. Step 3: Cross multiply
    1,008,140.20x = 1,512,210.30 × 906,663.40
  4. Step 4: Simplify right side
    1,008,140.20x = 1,371,065,732,113.02
  5. Step 5: Solve for x
    x = 1,371,065,732,113.02/1,008,140.20
  6. Step 6: Final answer
    x = 1,359,995.10

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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.