Home / 917,124.90-1,376,015.40-384,809.10

Finding the Fourth Proportional to 917,124.90, 1,376,015.40 and 384,809.10

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Solution

The fourth proportional to 917,124.90, 1,376,015.40 and 384,809.10 is: 577,351.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,124.90 : 1,376,015.40 = 384,809.10 : x
  2. Step 2: Convert to fraction form
    917,124.90/1,376,015.40 = 384,809.10/x
  3. Step 3: Cross multiply
    917,124.90x = 1,376,015.40 × 384,809.10
  4. Step 4: Simplify right side
    917,124.90x = 529,503,247,660.14
  5. Step 5: Solve for x
    x = 529,503,247,660.14/917,124.90
  6. Step 6: Final answer
    x = 577,351.29

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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.