Home / 1,207,115.70-1,807,721.10-575,291.40

Finding the Fourth Proportional to 1,207,115.70, 1,807,721.10 and 575,291.40

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Solution

The fourth proportional to 1,207,115.70, 1,807,721.10 and 575,291.40 is: 861,530.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,115.70 : 1,807,721.10 = 575,291.40 : x
  2. Step 2: Convert to fraction form
    1,207,115.70/1,807,721.10 = 575,291.40/x
  3. Step 3: Cross multiply
    1,207,115.70x = 1,807,721.10 × 575,291.40
  4. Step 4: Simplify right side
    1,207,115.70x = 1,039,966,402,428.54
  5. Step 5: Solve for x
    x = 1,039,966,402,428.54/1,207,115.70
  6. Step 6: Final answer
    x = 861,530.01

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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.