Home / 1,121,249-1,547,366.28-637,858.28

Finding the Fourth Proportional to 1,121,249, 1,547,366.28 and 637,858.28

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Solution

The fourth proportional to 1,121,249, 1,547,366.28 and 637,858.28 is: 880,268.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,249 : 1,547,366.28 = 637,858.28 : x
  2. Step 2: Convert to fraction form
    1,121,249/1,547,366.28 = 637,858.28/x
  3. Step 3: Cross multiply
    1,121,249x = 1,547,366.28 × 637,858.28
  4. Step 4: Simplify right side
    1,121,249x = 987,000,393,890.80
  5. Step 5: Solve for x
    x = 987,000,393,890.80/1,121,249
  6. Step 6: Final answer
    x = 880,268.69

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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.