Home / 1,121,875.75-1,547,402.83-759,139.93

Finding the Fourth Proportional to 1,121,875.75, 1,547,402.83 and 759,139.93

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Solution

The fourth proportional to 1,121,875.75, 1,547,402.83 and 759,139.93 is: 1,047,081.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,875.75 : 1,547,402.83 = 759,139.93 : x
  2. Step 2: Convert to fraction form
    1,121,875.75/1,547,402.83 = 759,139.93/x
  3. Step 3: Cross multiply
    1,121,875.75x = 1,547,402.83 × 759,139.93
  4. Step 4: Simplify right side
    1,121,875.75x = 1,174,695,276,048.00
  5. Step 5: Solve for x
    x = 1,174,695,276,048.00/1,121,875.75
  6. Step 6: Final answer
    x = 1,047,081.44

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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.