Home / 3,121,202.70-4,681,804.05-991,502.10

Finding the Fourth Proportional to 3,121,202.70, 4,681,804.05 and 991,502.10

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Solution

The fourth proportional to 3,121,202.70, 4,681,804.05 and 991,502.10 is: 1,487,253.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,202.70 : 4,681,804.05 = 991,502.10 : x
  2. Step 2: Convert to fraction form
    3,121,202.70/4,681,804.05 = 991,502.10/x
  3. Step 3: Cross multiply
    3,121,202.70x = 4,681,804.05 × 991,502.10
  4. Step 4: Simplify right side
    3,121,202.70x = 4,642,018,547,363.51
  5. Step 5: Solve for x
    x = 4,642,018,547,363.51/3,121,202.70
  6. Step 6: Final answer
    x = 1,487,253.15

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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.