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Finding the Fourth Proportional to 634,553.23, 875,678.05 and 348,068.11

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Solution

The fourth proportional to 634,553.23, 875,678.05 and 348,068.11 is: 480,331.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,553.23 : 875,678.05 = 348,068.11 : x
  2. Step 2: Convert to fraction form
    634,553.23/875,678.05 = 348,068.11/x
  3. Step 3: Cross multiply
    634,553.23x = 875,678.05 × 348,068.11
  4. Step 4: Simplify right side
    634,553.23x = 304,795,603,831.99
  5. Step 5: Solve for x
    x = 304,795,603,831.99/634,553.23
  6. Step 6: Final answer
    x = 480,331.03

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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.