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Finding the Fourth Proportional to 528,973.98, 730,482.30 and 368,268.45

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Solution

The fourth proportional to 528,973.98, 730,482.30 and 368,268.45 is: 508,557.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,973.98 : 730,482.30 = 368,268.45 : x
  2. Step 2: Convert to fraction form
    528,973.98/730,482.30 = 368,268.45/x
  3. Step 3: Cross multiply
    528,973.98x = 730,482.30 × 368,268.45
  4. Step 4: Simplify right side
    528,973.98x = 269,013,584,373.44
  5. Step 5: Solve for x
    x = 269,013,584,373.44/528,973.98
  6. Step 6: Final answer
    x = 508,557.31

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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.