Home / 670,347.20-1,005,520.80-470,892.80

Finding the Fourth Proportional to 670,347.20, 1,005,520.80 and 470,892.80

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Solution

The fourth proportional to 670,347.20, 1,005,520.80 and 470,892.80 is: 706,339.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,347.20 : 1,005,520.80 = 470,892.80 : x
  2. Step 2: Convert to fraction form
    670,347.20/1,005,520.80 = 470,892.80/x
  3. Step 3: Cross multiply
    670,347.20x = 1,005,520.80 × 470,892.80
  4. Step 4: Simplify right side
    670,347.20x = 473,492,504,970.24
  5. Step 5: Solve for x
    x = 473,492,504,970.24/670,347.20
  6. Step 6: Final answer
    x = 706,339.20

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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.