Home / 646,264.77-891,828-359,784.88

Finding the Fourth Proportional to 646,264.77, 891,828 and 359,784.88

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Solution

The fourth proportional to 646,264.77, 891,828 and 359,784.88 is: 496,493.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,264.77 : 891,828 = 359,784.88 : x
  2. Step 2: Convert to fraction form
    646,264.77/891,828 = 359,784.88/x
  3. Step 3: Cross multiply
    646,264.77x = 891,828 × 359,784.88
  4. Step 4: Simplify right side
    646,264.77x = 320,866,229,960.64
  5. Step 5: Solve for x
    x = 320,866,229,960.64/646,264.77
  6. Step 6: Final answer
    x = 496,493.46

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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.