Home / 917,018.05-1,375,084.63-384,396.07

Finding the Fourth Proportional to 917,018.05, 1,375,084.63 and 384,396.07

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Solution

The fourth proportional to 917,018.05, 1,375,084.63 and 384,396.07 is: 576,408.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,018.05 : 1,375,084.63 = 384,396.07 : x
  2. Step 2: Convert to fraction form
    917,018.05/1,375,084.63 = 384,396.07/x
  3. Step 3: Cross multiply
    917,018.05x = 1,375,084.63 × 384,396.07
  4. Step 4: Simplify right side
    917,018.05x = 528,577,127,689.40
  5. Step 5: Solve for x
    x = 528,577,127,689.40/917,018.05
  6. Step 6: Final answer
    x = 576,408.64

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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.