Home / 815,431.60-1,219,210.80-602,855.20

Finding the Fourth Proportional to 815,431.60, 1,219,210.80 and 602,855.20

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Solution

The fourth proportional to 815,431.60, 1,219,210.80 and 602,855.20 is: 901,372.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,431.60 : 1,219,210.80 = 602,855.20 : x
  2. Step 2: Convert to fraction form
    815,431.60/1,219,210.80 = 602,855.20/x
  3. Step 3: Cross multiply
    815,431.60x = 1,219,210.80 × 602,855.20
  4. Step 4: Simplify right side
    815,431.60x = 735,007,570,676.16
  5. Step 5: Solve for x
    x = 735,007,570,676.16/815,431.60
  6. Step 6: Final answer
    x = 901,372.44

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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.