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Finding the Fourth Proportional to 533,038.40, 735,521.90 and 342,310.12

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Solution

The fourth proportional to 533,038.40, 735,521.90 and 342,310.12 is: 472,342.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,038.40 : 735,521.90 = 342,310.12 : x
  2. Step 2: Convert to fraction form
    533,038.40/735,521.90 = 342,310.12/x
  3. Step 3: Cross multiply
    533,038.40x = 735,521.90 × 342,310.12
  4. Step 4: Simplify right side
    533,038.40x = 251,776,589,851.63
  5. Step 5: Solve for x
    x = 251,776,589,851.63/533,038.40
  6. Step 6: Final answer
    x = 472,342.31

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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.