Home / 912,508.02-1,368,645.36-379,929.78

Finding the Fourth Proportional to 912,508.02, 1,368,645.36 and 379,929.78

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Solution

The fourth proportional to 912,508.02, 1,368,645.36 and 379,929.78 is: 569,846.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,508.02 : 1,368,645.36 = 379,929.78 : x
  2. Step 2: Convert to fraction form
    912,508.02/1,368,645.36 = 379,929.78/x
  3. Step 3: Cross multiply
    912,508.02x = 1,368,645.36 × 379,929.78
  4. Step 4: Simplify right side
    912,508.02x = 519,989,130,522.82
  5. Step 5: Solve for x
    x = 519,989,130,522.82/912,508.02
  6. Step 6: Final answer
    x = 569,846.09

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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.