Home / 957,165.17-1,320,870.99-521,586.37

Finding the Fourth Proportional to 957,165.17, 1,320,870.99 and 521,586.37

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Solution

The fourth proportional to 957,165.17, 1,320,870.99 and 521,586.37 is: 719,779.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,165.17 : 1,320,870.99 = 521,586.37 : x
  2. Step 2: Convert to fraction form
    957,165.17/1,320,870.99 = 521,586.37/x
  3. Step 3: Cross multiply
    957,165.17x = 1,320,870.99 × 521,586.37
  4. Step 4: Simplify right side
    957,165.17x = 688,948,299,279.64
  5. Step 5: Solve for x
    x = 688,948,299,279.64/957,165.17
  6. Step 6: Final answer
    x = 719,779.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.