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Finding the Fourth Proportional to 587,018.18, 810,108.32 and 328,897.36

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Solution

The fourth proportional to 587,018.18, 810,108.32 and 328,897.36 is: 453,891.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,018.18 : 810,108.32 = 328,897.36 : x
  2. Step 2: Convert to fraction form
    587,018.18/810,108.32 = 328,897.36/x
  3. Step 3: Cross multiply
    587,018.18x = 810,108.32 × 328,897.36
  4. Step 4: Simplify right side
    587,018.18x = 266,442,483,711.49
  5. Step 5: Solve for x
    x = 266,442,483,711.49/587,018.18
  6. Step 6: Final answer
    x = 453,891.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.