Home / 438,210.54-657,587.97-280,552.14

Finding the Fourth Proportional to 438,210.54, 657,587.97 and 280,552.14

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Solution

The fourth proportional to 438,210.54, 657,587.97 and 280,552.14 is: 421,002.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,210.54 : 657,587.97 = 280,552.14 : x
  2. Step 2: Convert to fraction form
    438,210.54/657,587.97 = 280,552.14/x
  3. Step 3: Cross multiply
    438,210.54x = 657,587.97 × 280,552.14
  4. Step 4: Simplify right side
    438,210.54x = 184,487,712,221.76
  5. Step 5: Solve for x
    x = 184,487,712,221.76/438,210.54
  6. Step 6: Final answer
    x = 421,002.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.