Home / 913,336.64-1,369,665.12-314,129.60

Finding the Fourth Proportional to 913,336.64, 1,369,665.12 and 314,129.60

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Solution

The fourth proportional to 913,336.64, 1,369,665.12 and 314,129.60 is: 471,077.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,336.64 : 1,369,665.12 = 314,129.60 : x
  2. Step 2: Convert to fraction form
    913,336.64/1,369,665.12 = 314,129.60/x
  3. Step 3: Cross multiply
    913,336.64x = 1,369,665.12 × 314,129.60
  4. Step 4: Simplify right side
    913,336.64x = 430,252,356,279.55
  5. Step 5: Solve for x
    x = 430,252,356,279.55/913,336.64
  6. Step 6: Final answer
    x = 471,077.52

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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.