Home / 917,208.47-1,265,864.34-554,634.86

Finding the Fourth Proportional to 917,208.47, 1,265,864.34 and 554,634.86

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Solution

The fourth proportional to 917,208.47, 1,265,864.34 and 554,634.86 is: 765,466.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,208.47 : 1,265,864.34 = 554,634.86 : x
  2. Step 2: Convert to fraction form
    917,208.47/1,265,864.34 = 554,634.86/x
  3. Step 3: Cross multiply
    917,208.47x = 1,265,864.34 × 554,634.86
  4. Step 4: Simplify right side
    917,208.47x = 702,092,490,994.89
  5. Step 5: Solve for x
    x = 702,092,490,994.89/917,208.47
  6. Step 6: Final answer
    x = 765,466.65

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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.