Home / 1,121,443.56-1,547,572.37-637,998.40

Finding the Fourth Proportional to 1,121,443.56, 1,547,572.37 and 637,998.40

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Solution

The fourth proportional to 1,121,443.56, 1,547,572.37 and 637,998.40 is: 880,426.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,443.56 : 1,547,572.37 = 637,998.40 : x
  2. Step 2: Convert to fraction form
    1,121,443.56/1,547,572.37 = 637,998.40/x
  3. Step 3: Cross multiply
    1,121,443.56x = 1,547,572.37 × 637,998.40
  4. Step 4: Simplify right side
    1,121,443.56x = 987,348,699,015.64
  5. Step 5: Solve for x
    x = 987,348,699,015.64/1,121,443.56
  6. Step 6: Final answer
    x = 880,426.56

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Double scale
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1.5x scale

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.