Home / 970,078.37-1,455,342.78-330,387.63

Finding the Fourth Proportional to 970,078.37, 1,455,342.78 and 330,387.63

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Solution

The fourth proportional to 970,078.37, 1,455,342.78 and 330,387.63 is: 495,658.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,078.37 : 1,455,342.78 = 330,387.63 : x
  2. Step 2: Convert to fraction form
    970,078.37/1,455,342.78 = 330,387.63/x
  3. Step 3: Cross multiply
    970,078.37x = 1,455,342.78 × 330,387.63
  4. Step 4: Simplify right side
    970,078.37x = 480,827,251,921.81
  5. Step 5: Solve for x
    x = 480,827,251,921.81/970,078.37
  6. Step 6: Final answer
    x = 495,658.15

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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.