Home / 1,121,371.29-1,547,438.58-637,891.20

Finding the Fourth Proportional to 1,121,371.29, 1,547,438.58 and 637,891.20

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Solution

The fourth proportional to 1,121,371.29, 1,547,438.58 and 637,891.20 is: 880,259.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,371.29 : 1,547,438.58 = 637,891.20 : x
  2. Step 2: Convert to fraction form
    1,121,371.29/1,547,438.58 = 637,891.20/x
  3. Step 3: Cross multiply
    1,121,371.29x = 1,547,438.58 × 637,891.20
  4. Step 4: Simplify right side
    1,121,371.29x = 987,097,452,722.50
  5. Step 5: Solve for x
    x = 987,097,452,722.50/1,121,371.29
  6. Step 6: Final answer
    x = 880,259.25

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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.