Home / 724,836.90-1,087,583.40-345,611.10

Finding the Fourth Proportional to 724,836.90, 1,087,583.40 and 345,611.10

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Solution

The fourth proportional to 724,836.90, 1,087,583.40 and 345,611.10 is: 518,573.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,836.90 : 1,087,583.40 = 345,611.10 : x
  2. Step 2: Convert to fraction form
    724,836.90/1,087,583.40 = 345,611.10/x
  3. Step 3: Cross multiply
    724,836.90x = 1,087,583.40 × 345,611.10
  4. Step 4: Simplify right side
    724,836.90x = 375,880,895,215.74
  5. Step 5: Solve for x
    x = 375,880,895,215.74/724,836.90
  6. Step 6: Final answer
    x = 518,573.07

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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.