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Finding the Fourth Proportional to 672,485.71, 928,002.35 and 366,555.36

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Solution

The fourth proportional to 672,485.71, 928,002.35 and 366,555.36 is: 505,831.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,485.71 : 928,002.35 = 366,555.36 : x
  2. Step 2: Convert to fraction form
    672,485.71/928,002.35 = 366,555.36/x
  3. Step 3: Cross multiply
    672,485.71x = 928,002.35 × 366,555.36
  4. Step 4: Simplify right side
    672,485.71x = 340,164,235,485.10
  5. Step 5: Solve for x
    x = 340,164,235,485.10/672,485.71
  6. Step 6: Final answer
    x = 505,831.17

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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.