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Finding the Fourth Proportional to 434,955.60, 652,433.40 and 389,336.40

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Solution

The fourth proportional to 434,955.60, 652,433.40 and 389,336.40 is: 584,004.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,955.60 : 652,433.40 = 389,336.40 : x
  2. Step 2: Convert to fraction form
    434,955.60/652,433.40 = 389,336.40/x
  3. Step 3: Cross multiply
    434,955.60x = 652,433.40 × 389,336.40
  4. Step 4: Simplify right side
    434,955.60x = 254,016,071,195.76
  5. Step 5: Solve for x
    x = 254,016,071,195.76/434,955.60
  6. Step 6: Final answer
    x = 584,004.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.