Home / 917,720.34-1,376,777.52-384,934.30

Finding the Fourth Proportional to 917,720.34, 1,376,777.52 and 384,934.30

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Solution

The fourth proportional to 917,720.34, 1,376,777.52 and 384,934.30 is: 577,484.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,720.34 : 1,376,777.52 = 384,934.30 : x
  2. Step 2: Convert to fraction form
    917,720.34/1,376,777.52 = 384,934.30/x
  3. Step 3: Cross multiply
    917,720.34x = 1,376,777.52 × 384,934.30
  4. Step 4: Simplify right side
    917,720.34x = 529,968,890,916.94
  5. Step 5: Solve for x
    x = 529,968,890,916.94/917,720.34
  6. Step 6: Final answer
    x = 577,484.09

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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.