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Finding the Fourth Proportional to 611,043, 843,245.10 and 342,776.76

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Solution

The fourth proportional to 611,043, 843,245.10 and 342,776.76 is: 473,035.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,043 : 843,245.10 = 342,776.76 : x
  2. Step 2: Convert to fraction form
    611,043/843,245.10 = 342,776.76/x
  3. Step 3: Cross multiply
    611,043x = 843,245.10 × 342,776.76
  4. Step 4: Simplify right side
    611,043x = 289,044,823,263.88
  5. Step 5: Solve for x
    x = 289,044,823,263.88/611,043
  6. Step 6: Final answer
    x = 473,035.16

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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.