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Finding the Fourth Proportional to 611,068.91, 843,284.34 and 339,154.41

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Solution

The fourth proportional to 611,068.91, 843,284.34 and 339,154.41 is: 468,038.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,068.91 : 843,284.34 = 339,154.41 : x
  2. Step 2: Convert to fraction form
    611,068.91/843,284.34 = 339,154.41/x
  3. Step 3: Cross multiply
    611,068.91x = 843,284.34 × 339,154.41
  4. Step 4: Simplify right side
    611,068.91x = 286,003,602,794.94
  5. Step 5: Solve for x
    x = 286,003,602,794.94/611,068.91
  6. Step 6: Final answer
    x = 468,038.21

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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.