Home / 778,959.32-1,074,967.10-421,263.32

Finding the Fourth Proportional to 778,959.32, 1,074,967.10 and 421,263.32

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Solution

The fourth proportional to 778,959.32, 1,074,967.10 and 421,263.32 is: 581,345.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,959.32 : 1,074,967.10 = 421,263.32 : x
  2. Step 2: Convert to fraction form
    778,959.32/1,074,967.10 = 421,263.32/x
  3. Step 3: Cross multiply
    778,959.32x = 1,074,967.10 × 421,263.32
  4. Step 4: Simplify right side
    778,959.32x = 452,844,207,330.46
  5. Step 5: Solve for x
    x = 452,844,207,330.46/778,959.32
  6. Step 6: Final answer
    x = 581,345.13

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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.