Home / 646,110.46-891,632.47-359,624.40

Finding the Fourth Proportional to 646,110.46, 891,632.47 and 359,624.40

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Solution

The fourth proportional to 646,110.46, 891,632.47 and 359,624.40 is: 496,281.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,110.46 : 891,632.47 = 359,624.40 : x
  2. Step 2: Convert to fraction form
    646,110.46/891,632.47 = 359,624.40/x
  3. Step 3: Cross multiply
    646,110.46x = 891,632.47 × 359,624.40
  4. Step 4: Simplify right side
    646,110.46x = 320,652,787,586.11
  5. Step 5: Solve for x
    x = 320,652,787,586.11/646,110.46
  6. Step 6: Final answer
    x = 496,281.68

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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.