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Finding the Fourth Proportional to 564,725.51, 779,333.78 and 310,077.71

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Solution

The fourth proportional to 564,725.51, 779,333.78 and 310,077.71 is: 427,914.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,725.51 : 779,333.78 = 310,077.71 : x
  2. Step 2: Convert to fraction form
    564,725.51/779,333.78 = 310,077.71/x
  3. Step 3: Cross multiply
    564,725.51x = 779,333.78 × 310,077.71
  4. Step 4: Simplify right side
    564,725.51x = 241,654,033,828.04
  5. Step 5: Solve for x
    x = 241,654,033,828.04/564,725.51
  6. Step 6: Final answer
    x = 427,914.15

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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.