Home / 1,335,129.10-2,002,693.65-978,210.70

Finding the Fourth Proportional to 1,335,129.10, 2,002,693.65 and 978,210.70

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Solution

The fourth proportional to 1,335,129.10, 2,002,693.65 and 978,210.70 is: 1,467,316.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335,129.10 : 2,002,693.65 = 978,210.70 : x
  2. Step 2: Convert to fraction form
    1,335,129.10/2,002,693.65 = 978,210.70/x
  3. Step 3: Cross multiply
    1,335,129.10x = 2,002,693.65 × 978,210.70
  4. Step 4: Simplify right side
    1,335,129.10x = 1,959,056,357,252.06
  5. Step 5: Solve for x
    x = 1,959,056,357,252.06/1,335,129.10
  6. Step 6: Final answer
    x = 1,467,316.05

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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.