Home / 646,117.22-891,641.80-359,631.16

Finding the Fourth Proportional to 646,117.22, 891,641.80 and 359,631.16

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Solution

The fourth proportional to 646,117.22, 891,641.80 and 359,631.16 is: 496,291.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,117.22 : 891,641.80 = 359,631.16 : x
  2. Step 2: Convert to fraction form
    646,117.22/891,641.80 = 359,631.16/x
  3. Step 3: Cross multiply
    646,117.22x = 891,641.80 × 359,631.16
  4. Step 4: Simplify right side
    646,117.22x = 320,662,174,838.49
  5. Step 5: Solve for x
    x = 320,662,174,838.49/646,117.22
  6. Step 6: Final answer
    x = 496,291.02

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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.