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Finding the Fourth Proportional to 553,735.70, 830,603.55 and 548,486.90

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Solution

The fourth proportional to 553,735.70, 830,603.55 and 548,486.90 is: 822,730.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,735.70 : 830,603.55 = 548,486.90 : x
  2. Step 2: Convert to fraction form
    553,735.70/830,603.55 = 548,486.90/x
  3. Step 3: Cross multiply
    553,735.70x = 830,603.55 × 548,486.90
  4. Step 4: Simplify right side
    553,735.70x = 455,575,166,268.50
  5. Step 5: Solve for x
    x = 455,575,166,268.50/553,735.70
  6. Step 6: Final answer
    x = 822,730.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.