Home / 913,146.81-1,260,179.72-505,242.01

Finding the Fourth Proportional to 913,146.81, 1,260,179.72 and 505,242.01

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Solution

The fourth proportional to 913,146.81, 1,260,179.72 and 505,242.01 is: 697,254.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,146.81 : 1,260,179.72 = 505,242.01 : x
  2. Step 2: Convert to fraction form
    913,146.81/1,260,179.72 = 505,242.01/x
  3. Step 3: Cross multiply
    913,146.81x = 1,260,179.72 × 505,242.01
  4. Step 4: Simplify right side
    913,146.81x = 636,695,732,167.83
  5. Step 5: Solve for x
    x = 636,695,732,167.83/913,146.81
  6. Step 6: Final answer
    x = 697,254.51

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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.