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Finding the Fourth Proportional to 675,645, 932,401.92 and 369,748.50

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Solution

The fourth proportional to 675,645, 932,401.92 and 369,748.50 is: 510,259.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,645 : 932,401.92 = 369,748.50 : x
  2. Step 2: Convert to fraction form
    675,645/932,401.92 = 369,748.50/x
  3. Step 3: Cross multiply
    675,645x = 932,401.92 × 369,748.50
  4. Step 4: Simplify right side
    675,645x = 344,754,211,317.12
  5. Step 5: Solve for x
    x = 344,754,211,317.12/675,645
  6. Step 6: Final answer
    x = 510,259.40

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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.