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Finding the Fourth Proportional to 880,281.80, 1,320,860.10 and 347,820.20

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Solution

The fourth proportional to 880,281.80, 1,320,860.10 and 347,820.20 is: 521,903.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,281.80 : 1,320,860.10 = 347,820.20 : x
  2. Step 2: Convert to fraction form
    880,281.80/1,320,860.10 = 347,820.20/x
  3. Step 3: Cross multiply
    880,281.80x = 1,320,860.10 × 347,820.20
  4. Step 4: Simplify right side
    880,281.80x = 459,421,824,154.02
  5. Step 5: Solve for x
    x = 459,421,824,154.02/880,281.80
  6. Step 6: Final answer
    x = 521,903.13

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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.