Home / 646,118.46-891,643.50-359,632.40

Finding the Fourth Proportional to 646,118.46, 891,643.50 and 359,632.40

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Solution

The fourth proportional to 646,118.46, 891,643.50 and 359,632.40 is: 496,292.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,118.46 : 891,643.50 = 359,632.40 : x
  2. Step 2: Convert to fraction form
    646,118.46/891,643.50 = 359,632.40/x
  3. Step 3: Cross multiply
    646,118.46x = 891,643.50 × 359,632.40
  4. Step 4: Simplify right side
    646,118.46x = 320,663,887,391.18
  5. Step 5: Solve for x
    x = 320,663,887,391.18/646,118.46
  6. Step 6: Final answer
    x = 496,292.72

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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.