Home / 1,285,402.64-1,773,961.80-712,622.48

Finding the Fourth Proportional to 1,285,402.64, 1,773,961.80 and 712,622.48

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Solution

The fourth proportional to 1,285,402.64, 1,773,961.80 and 712,622.48 is: 983,477.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,402.64 : 1,773,961.80 = 712,622.48 : x
  2. Step 2: Convert to fraction form
    1,285,402.64/1,773,961.80 = 712,622.48/x
  3. Step 3: Cross multiply
    1,285,402.64x = 1,773,961.80 × 712,622.48
  4. Step 4: Simplify right side
    1,285,402.64x = 1,264,165,057,341.26
  5. Step 5: Solve for x
    x = 1,264,165,057,341.26/1,285,402.64
  6. Step 6: Final answer
    x = 983,477.88

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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.