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Finding the Fourth Proportional to 548,603.88, 757,088.54 and 306,928.23

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Solution

The fourth proportional to 548,603.88, 757,088.54 and 306,928.23 is: 423,569.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,603.88 : 757,088.54 = 306,928.23 : x
  2. Step 2: Convert to fraction form
    548,603.88/757,088.54 = 306,928.23/x
  3. Step 3: Cross multiply
    548,603.88x = 757,088.54 × 306,928.23
  4. Step 4: Simplify right side
    548,603.88x = 232,371,845,535.48
  5. Step 5: Solve for x
    x = 232,371,845,535.48/548,603.88
  6. Step 6: Final answer
    x = 423,569.45

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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.