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Finding the Fourth Proportional to 434,959.60, 651,661.80 and 355,644.40

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Solution

The fourth proportional to 434,959.60, 651,661.80 and 355,644.40 is: 532,830.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,959.60 : 651,661.80 = 355,644.40 : x
  2. Step 2: Convert to fraction form
    434,959.60/651,661.80 = 355,644.40/x
  3. Step 3: Cross multiply
    434,959.60x = 651,661.80 × 355,644.40
  4. Step 4: Simplify right side
    434,959.60x = 231,759,869,863.92
  5. Step 5: Solve for x
    x = 231,759,869,863.92/434,959.60
  6. Step 6: Final answer
    x = 532,830.80

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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.