Home / 953,284.50-1,430,123.67-279,387.90

Finding the Fourth Proportional to 953,284.50, 1,430,123.67 and 279,387.90

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Solution

The fourth proportional to 953,284.50, 1,430,123.67 and 279,387.90 is: 419,139.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    953,284.50 : 1,430,123.67 = 279,387.90 : x
  2. Step 2: Convert to fraction form
    953,284.50/1,430,123.67 = 279,387.90/x
  3. Step 3: Cross multiply
    953,284.50x = 1,430,123.67 × 279,387.90
  4. Step 4: Simplify right side
    953,284.50x = 399,559,248,901.59
  5. Step 5: Solve for x
    x = 399,559,248,901.59/953,284.50
  6. Step 6: Final answer
    x = 419,139.56

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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.