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Finding the Fourth Proportional to 564,723.51, 779,331.02 and 310,075.71

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Solution

The fourth proportional to 564,723.51, 779,331.02 and 310,075.71 is: 427,911.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,723.51 : 779,331.02 = 310,075.71 : x
  2. Step 2: Convert to fraction form
    564,723.51/779,331.02 = 310,075.71/x
  3. Step 3: Cross multiply
    564,723.51x = 779,331.02 × 310,075.71
  4. Step 4: Simplify right side
    564,723.51x = 241,651,617,801.15
  5. Step 5: Solve for x
    x = 241,651,617,801.15/564,723.51
  6. Step 6: Final answer
    x = 427,911.38

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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.