Home / 679,474.40-1,019,211.60-522,495.20

Finding the Fourth Proportional to 679,474.40, 1,019,211.60 and 522,495.20

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Solution

The fourth proportional to 679,474.40, 1,019,211.60 and 522,495.20 is: 783,742.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,474.40 : 1,019,211.60 = 522,495.20 : x
  2. Step 2: Convert to fraction form
    679,474.40/1,019,211.60 = 522,495.20/x
  3. Step 3: Cross multiply
    679,474.40x = 1,019,211.60 × 522,495.20
  4. Step 4: Simplify right side
    679,474.40x = 532,533,168,784.32
  5. Step 5: Solve for x
    x = 532,533,168,784.32/679,474.40
  6. Step 6: Final answer
    x = 783,742.80

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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.