Home / 1,208,169.90-1,812,130.02-409,430.70

Finding the Fourth Proportional to 1,208,169.90, 1,812,130.02 and 409,430.70

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Solution

The fourth proportional to 1,208,169.90, 1,812,130.02 and 409,430.70 is: 614,103.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,169.90 : 1,812,130.02 = 409,430.70 : x
  2. Step 2: Convert to fraction form
    1,208,169.90/1,812,130.02 = 409,430.70/x
  3. Step 3: Cross multiply
    1,208,169.90x = 1,812,130.02 × 409,430.70
  4. Step 4: Simplify right side
    1,208,169.90x = 741,941,662,579.61
  5. Step 5: Solve for x
    x = 741,941,662,579.61/1,208,169.90
  6. Step 6: Final answer
    x = 614,103.75

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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.