Home / 1,077,178.46-1,616,004.60-319,079.20

Finding the Fourth Proportional to 1,077,178.46, 1,616,004.60 and 319,079.20

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Solution

The fourth proportional to 1,077,178.46, 1,616,004.60 and 319,079.20 is: 478,688.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,178.46 : 1,616,004.60 = 319,079.20 : x
  2. Step 2: Convert to fraction form
    1,077,178.46/1,616,004.60 = 319,079.20/x
  3. Step 3: Cross multiply
    1,077,178.46x = 1,616,004.60 × 319,079.20
  4. Step 4: Simplify right side
    1,077,178.46x = 515,633,454,964.32
  5. Step 5: Solve for x
    x = 515,633,454,964.32/1,077,178.46
  6. Step 6: Final answer
    x = 478,688.98

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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.