Home / 1,121,499.70-1,547,649.69-638,054.44

Finding the Fourth Proportional to 1,121,499.70, 1,547,649.69 and 638,054.44

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Solution

The fourth proportional to 1,121,499.70, 1,547,649.69 and 638,054.44 is: 880,503.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,499.70 : 1,547,649.69 = 638,054.44 : x
  2. Step 2: Convert to fraction form
    1,121,499.70/1,547,649.69 = 638,054.44/x
  3. Step 3: Cross multiply
    1,121,499.70x = 1,547,649.69 × 638,054.44
  4. Step 4: Simplify right side
    1,121,499.70x = 987,484,756,269.12
  5. Step 5: Solve for x
    x = 987,484,756,269.12/1,121,499.70
  6. Step 6: Final answer
    x = 880,503.81

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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.