Home / 748,383.45-1,127,628.85-618,180.81

Finding the Fourth Proportional to 748,383.45, 1,127,628.85 and 618,180.81

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Solution

The fourth proportional to 748,383.45, 1,127,628.85 and 618,180.81 is: 931,445.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,383.45 : 1,127,628.85 = 618,180.81 : x
  2. Step 2: Convert to fraction form
    748,383.45/1,127,628.85 = 618,180.81/x
  3. Step 3: Cross multiply
    748,383.45x = 1,127,628.85 × 618,180.81
  4. Step 4: Simplify right side
    748,383.45x = 697,078,514,326.92
  5. Step 5: Solve for x
    x = 697,078,514,326.92/748,383.45
  6. Step 6: Final answer
    x = 931,445.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.