Home / 1,428,574.79-2,142,303.98-517,540.98

Finding the Fourth Proportional to 1,428,574.79, 2,142,303.98 and 517,540.98

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Solution

The fourth proportional to 1,428,574.79, 2,142,303.98 and 517,540.98 is: 776,109.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,574.79 : 2,142,303.98 = 517,540.98 : x
  2. Step 2: Convert to fraction form
    1,428,574.79/2,142,303.98 = 517,540.98/x
  3. Step 3: Cross multiply
    1,428,574.79x = 2,142,303.98 × 517,540.98
  4. Step 4: Simplify right side
    1,428,574.79x = 1,108,730,108,794.99
  5. Step 5: Solve for x
    x = 1,108,730,108,794.99/1,428,574.79
  6. Step 6: Final answer
    x = 776,109.25

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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.