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Finding the Fourth Proportional to 540,300.86, 810,196.88 and 315,726.20

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Solution

The fourth proportional to 540,300.86, 810,196.88 and 315,726.20 is: 473,440.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,300.86 : 810,196.88 = 315,726.20 : x
  2. Step 2: Convert to fraction form
    540,300.86/810,196.88 = 315,726.20/x
  3. Step 3: Cross multiply
    540,300.86x = 810,196.88 × 315,726.20
  4. Step 4: Simplify right side
    540,300.86x = 255,800,382,174.26
  5. Step 5: Solve for x
    x = 255,800,382,174.26/540,300.86
  6. Step 6: Final answer
    x = 473,440.63

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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.