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Finding the Fourth Proportional to 572,722.80, 790,420.13 and 327,730.20

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Solution

The fourth proportional to 572,722.80, 790,420.13 and 327,730.20 is: 452,303.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,722.80 : 790,420.13 = 327,730.20 : x
  2. Step 2: Convert to fraction form
    572,722.80/790,420.13 = 327,730.20/x
  3. Step 3: Cross multiply
    572,722.80x = 790,420.13 × 327,730.20
  4. Step 4: Simplify right side
    572,722.80x = 259,044,547,288.93
  5. Step 5: Solve for x
    x = 259,044,547,288.93/572,722.80
  6. Step 6: Final answer
    x = 452,303.54

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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.