Home / 738,730.40-1,108,095.60-265,431.20

Finding the Fourth Proportional to 738,730.40, 1,108,095.60 and 265,431.20

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Solution

The fourth proportional to 738,730.40, 1,108,095.60 and 265,431.20 is: 398,146.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,730.40 : 1,108,095.60 = 265,431.20 : x
  2. Step 2: Convert to fraction form
    738,730.40/1,108,095.60 = 265,431.20/x
  3. Step 3: Cross multiply
    738,730.40x = 1,108,095.60 × 265,431.20
  4. Step 4: Simplify right side
    738,730.40x = 294,123,144,822.72
  5. Step 5: Solve for x
    x = 294,123,144,822.72/738,730.40
  6. Step 6: Final answer
    x = 398,146.80

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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.