Home / 877,570.80-1,315,967.40-404,401.20

Finding the Fourth Proportional to 877,570.80, 1,315,967.40 and 404,401.20

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Solution

The fourth proportional to 877,570.80, 1,315,967.40 and 404,401.20 is: 606,422.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,570.80 : 1,315,967.40 = 404,401.20 : x
  2. Step 2: Convert to fraction form
    877,570.80/1,315,967.40 = 404,401.20/x
  3. Step 3: Cross multiply
    877,570.80x = 1,315,967.40 × 404,401.20
  4. Step 4: Simplify right side
    877,570.80x = 532,178,795,720.88
  5. Step 5: Solve for x
    x = 532,178,795,720.88/877,570.80
  6. Step 6: Final answer
    x = 606,422.63

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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.