Home / 836,972.10-1,155,007.86-455,008.50

Finding the Fourth Proportional to 836,972.10, 1,155,007.86 and 455,008.50

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Solution

The fourth proportional to 836,972.10, 1,155,007.86 and 455,008.50 is: 627,904.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,972.10 : 1,155,007.86 = 455,008.50 : x
  2. Step 2: Convert to fraction form
    836,972.10/1,155,007.86 = 455,008.50/x
  3. Step 3: Cross multiply
    836,972.10x = 1,155,007.86 × 455,008.50
  4. Step 4: Simplify right side
    836,972.10x = 525,538,393,866.81
  5. Step 5: Solve for x
    x = 525,538,393,866.81/836,972.10
  6. Step 6: Final answer
    x = 627,904.32

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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.