Home / 1,205,051.76-1,663,031.79-688,832.28

Finding the Fourth Proportional to 1,205,051.76, 1,663,031.79 and 688,832.28

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Solution

The fourth proportional to 1,205,051.76, 1,663,031.79 and 688,832.28 is: 950,623.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,051.76 : 1,663,031.79 = 688,832.28 : x
  2. Step 2: Convert to fraction form
    1,205,051.76/1,663,031.79 = 688,832.28/x
  3. Step 3: Cross multiply
    1,205,051.76x = 1,663,031.79 × 688,832.28
  4. Step 4: Simplify right side
    1,205,051.76x = 1,145,549,979,618.18
  5. Step 5: Solve for x
    x = 1,145,549,979,618.18/1,205,051.76
  6. Step 6: Final answer
    x = 950,623.05

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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.