Home / 554,703.39-828,042.35-487,443.02

Finding the Fourth Proportional to 554,703.39, 828,042.35 and 487,443.02

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Solution

The fourth proportional to 554,703.39, 828,042.35 and 487,443.02 is: 727,638.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,703.39 : 828,042.35 = 487,443.02 : x
  2. Step 2: Convert to fraction form
    554,703.39/828,042.35 = 487,443.02/x
  3. Step 3: Cross multiply
    554,703.39x = 828,042.35 × 487,443.02
  4. Step 4: Simplify right side
    554,703.39x = 403,623,457,194.47
  5. Step 5: Solve for x
    x = 403,623,457,194.47/554,703.39
  6. Step 6: Final answer
    x = 727,638.35

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.