Home / 665,296.95-918,110.16-359,373.33

Finding the Fourth Proportional to 665,296.95, 918,110.16 and 359,373.33

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Solution

The fourth proportional to 665,296.95, 918,110.16 and 359,373.33 is: 495,935.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,296.95 : 918,110.16 = 359,373.33 : x
  2. Step 2: Convert to fraction form
    665,296.95/918,110.16 = 359,373.33/x
  3. Step 3: Cross multiply
    665,296.95x = 918,110.16 × 359,373.33
  4. Step 4: Simplify right side
    665,296.95x = 329,944,306,572.11
  5. Step 5: Solve for x
    x = 329,944,306,572.11/665,296.95
  6. Step 6: Final answer
    x = 495,935.40

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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.