Home / 656,071.20-983,492.40-513,837.60

Finding the Fourth Proportional to 656,071.20, 983,492.40 and 513,837.60

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Solution

The fourth proportional to 656,071.20, 983,492.40 and 513,837.60 is: 770,275.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,071.20 : 983,492.40 = 513,837.60 : x
  2. Step 2: Convert to fraction form
    656,071.20/983,492.40 = 513,837.60/x
  3. Step 3: Cross multiply
    656,071.20x = 983,492.40 × 513,837.60
  4. Step 4: Simplify right side
    656,071.20x = 505,355,374,434.24
  5. Step 5: Solve for x
    x = 505,355,374,434.24/656,071.20
  6. Step 6: Final answer
    x = 770,275.20

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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.