Home / 993,530.10-1,489,459.23-432,141.78

Finding the Fourth Proportional to 993,530.10, 1,489,459.23 and 432,141.78

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Solution

The fourth proportional to 993,530.10, 1,489,459.23 and 432,141.78 is: 647,849.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,530.10 : 1,489,459.23 = 432,141.78 : x
  2. Step 2: Convert to fraction form
    993,530.10/1,489,459.23 = 432,141.78/x
  3. Step 3: Cross multiply
    993,530.10x = 1,489,459.23 × 432,141.78
  4. Step 4: Simplify right side
    993,530.10x = 643,657,562,889.63
  5. Step 5: Solve for x
    x = 643,657,562,889.63/993,530.10
  6. Step 6: Final answer
    x = 647,849.08

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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.