Home / 1,683,515.20-2,525,272.80-421,340.80

Finding the Fourth Proportional to 1,683,515.20, 2,525,272.80 and 421,340.80

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Solution

The fourth proportional to 1,683,515.20, 2,525,272.80 and 421,340.80 is: 632,011.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,683,515.20 : 2,525,272.80 = 421,340.80 : x
  2. Step 2: Convert to fraction form
    1,683,515.20/2,525,272.80 = 421,340.80/x
  3. Step 3: Cross multiply
    1,683,515.20x = 2,525,272.80 × 421,340.80
  4. Step 4: Simplify right side
    1,683,515.20x = 1,064,000,461,770.24
  5. Step 5: Solve for x
    x = 1,064,000,461,770.24/1,683,515.20
  6. Step 6: Final answer
    x = 632,011.20

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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.