Home / 646,110.21-891,632.13-359,624.15

Finding the Fourth Proportional to 646,110.21, 891,632.13 and 359,624.15

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Solution

The fourth proportional to 646,110.21, 891,632.13 and 359,624.15 is: 496,281.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,110.21 : 891,632.13 = 359,624.15 : x
  2. Step 2: Convert to fraction form
    646,110.21/891,632.13 = 359,624.15/x
  3. Step 3: Cross multiply
    646,110.21x = 891,632.13 × 359,624.15
  4. Step 4: Simplify right side
    646,110.21x = 320,652,442,405.78
  5. Step 5: Solve for x
    x = 320,652,442,405.78/646,110.21
  6. Step 6: Final answer
    x = 496,281.34

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1.5x scale

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.