Home / 1,117,615.32-1,676,478.06-319,014.45

Finding the Fourth Proportional to 1,117,615.32, 1,676,478.06 and 319,014.45

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Solution

The fourth proportional to 1,117,615.32, 1,676,478.06 and 319,014.45 is: 478,537.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,615.32 : 1,676,478.06 = 319,014.45 : x
  2. Step 2: Convert to fraction form
    1,117,615.32/1,676,478.06 = 319,014.45/x
  3. Step 3: Cross multiply
    1,117,615.32x = 1,676,478.06 × 319,014.45
  4. Step 4: Simplify right side
    1,117,615.32x = 534,820,726,247.97
  5. Step 5: Solve for x
    x = 534,820,726,247.97/1,117,615.32
  6. Step 6: Final answer
    x = 478,537.40

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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.