Home / 1,490,421.60-2,235,632.40-543,669.30

Finding the Fourth Proportional to 1,490,421.60, 2,235,632.40 and 543,669.30

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Solution

The fourth proportional to 1,490,421.60, 2,235,632.40 and 543,669.30 is: 815,503.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,421.60 : 2,235,632.40 = 543,669.30 : x
  2. Step 2: Convert to fraction form
    1,490,421.60/2,235,632.40 = 543,669.30/x
  3. Step 3: Cross multiply
    1,490,421.60x = 2,235,632.40 × 543,669.30
  4. Step 4: Simplify right side
    1,490,421.60x = 1,215,444,701,965.32
  5. Step 5: Solve for x
    x = 1,215,444,701,965.32/1,490,421.60
  6. Step 6: Final answer
    x = 815,503.95

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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.