Home / 1,545,534.39-2,130,374.00-1,218,314.20

Finding the Fourth Proportional to 1,545,534.39, 2,130,374.00 and 1,218,314.20

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Solution

The fourth proportional to 1,545,534.39, 2,130,374.00 and 1,218,314.20 is: 1,679,331.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,545,534.39 : 2,130,374.00 = 1,218,314.20 : x
  2. Step 2: Convert to fraction form
    1,545,534.39/2,130,374.00 = 1,218,314.20/x
  3. Step 3: Cross multiply
    1,545,534.39x = 2,130,374.00 × 1,218,314.20
  4. Step 4: Simplify right side
    1,545,534.39x = 2,595,464,887,139.08
  5. Step 5: Solve for x
    x = 2,595,464,887,139.08/1,545,534.39
  6. Step 6: Final answer
    x = 1,679,331.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.