Home / 723,510.12-1,085,108.58-456,914.28

Finding the Fourth Proportional to 723,510.12, 1,085,108.58 and 456,914.28

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Solution

The fourth proportional to 723,510.12, 1,085,108.58 and 456,914.28 is: 685,272.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,510.12 : 1,085,108.58 = 456,914.28 : x
  2. Step 2: Convert to fraction form
    723,510.12/1,085,108.58 = 456,914.28/x
  3. Step 3: Cross multiply
    723,510.12x = 1,085,108.58 × 456,914.28
  4. Step 4: Simplify right side
    723,510.12x = 495,801,605,552.52
  5. Step 5: Solve for x
    x = 495,801,605,552.52/723,510.12
  6. Step 6: Final answer
    x = 685,272.52

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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.