Home / 829,985.40-1,245,123.90-297,815.40

Finding the Fourth Proportional to 829,985.40, 1,245,123.90 and 297,815.40

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Solution

The fourth proportional to 829,985.40, 1,245,123.90 and 297,815.40 is: 446,775.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,985.40 : 1,245,123.90 = 297,815.40 : x
  2. Step 2: Convert to fraction form
    829,985.40/1,245,123.90 = 297,815.40/x
  3. Step 3: Cross multiply
    829,985.40x = 1,245,123.90 × 297,815.40
  4. Step 4: Simplify right side
    829,985.40x = 370,817,072,328.06
  5. Step 5: Solve for x
    x = 370,817,072,328.06/829,985.40
  6. Step 6: Final answer
    x = 446,775.42

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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.