Home / 918,434.70-1,377,455.22-287,266.50

Finding the Fourth Proportional to 918,434.70, 1,377,455.22 and 287,266.50

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Solution

The fourth proportional to 918,434.70, 1,377,455.22 and 287,266.50 is: 430,838.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,434.70 : 1,377,455.22 = 287,266.50 : x
  2. Step 2: Convert to fraction form
    918,434.70/1,377,455.22 = 287,266.50/x
  3. Step 3: Cross multiply
    918,434.70x = 1,377,455.22 × 287,266.50
  4. Step 4: Simplify right side
    918,434.70x = 395,696,739,956.13
  5. Step 5: Solve for x
    x = 395,696,739,956.13/918,434.70
  6. Step 6: Final answer
    x = 430,838.19

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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.