Home / 1,121,320.64-1,547,417.04-612,021.80

Finding the Fourth Proportional to 1,121,320.64, 1,547,417.04 and 612,021.80

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Solution

The fourth proportional to 1,121,320.64, 1,547,417.04 and 612,021.80 is: 844,587.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,320.64 : 1,547,417.04 = 612,021.80 : x
  2. Step 2: Convert to fraction form
    1,121,320.64/1,547,417.04 = 612,021.80/x
  3. Step 3: Cross multiply
    1,121,320.64x = 1,547,417.04 × 612,021.80
  4. Step 4: Simplify right side
    1,121,320.64x = 947,052,962,171.47
  5. Step 5: Solve for x
    x = 947,052,962,171.47/1,121,320.64
  6. Step 6: Final answer
    x = 844,587.11

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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.