Home / 821,444.10-1,230,841.35-465,399.30

Finding the Fourth Proportional to 821,444.10, 1,230,841.35 and 465,399.30

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Solution

The fourth proportional to 821,444.10, 1,230,841.35 and 465,399.30 is: 697,348.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,444.10 : 1,230,841.35 = 465,399.30 : x
  2. Step 2: Convert to fraction form
    821,444.10/1,230,841.35 = 465,399.30/x
  3. Step 3: Cross multiply
    821,444.10x = 1,230,841.35 × 465,399.30
  4. Step 4: Simplify right side
    821,444.10x = 572,832,702,701.06
  5. Step 5: Solve for x
    x = 572,832,702,701.06/821,444.10
  6. Step 6: Final answer
    x = 697,348.37

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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.