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Finding the Fourth Proportional to 607,320.90, 910,981.35 and 207,926.10

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Solution

The fourth proportional to 607,320.90, 910,981.35 and 207,926.10 is: 311,889.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,320.90 : 910,981.35 = 207,926.10 : x
  2. Step 2: Convert to fraction form
    607,320.90/910,981.35 = 207,926.10/x
  3. Step 3: Cross multiply
    607,320.90x = 910,981.35 × 207,926.10
  4. Step 4: Simplify right side
    607,320.90x = 189,416,799,278.24
  5. Step 5: Solve for x
    x = 189,416,799,278.24/607,320.90
  6. Step 6: Final answer
    x = 311,889.15

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1.5x scale

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.