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Finding the Fourth Proportional to 554,466.90, 831,700.35 and 402,907.80

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Solution

The fourth proportional to 554,466.90, 831,700.35 and 402,907.80 is: 604,361.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,466.90 : 831,700.35 = 402,907.80 : x
  2. Step 2: Convert to fraction form
    554,466.90/831,700.35 = 402,907.80/x
  3. Step 3: Cross multiply
    554,466.90x = 831,700.35 × 402,907.80
  4. Step 4: Simplify right side
    554,466.90x = 335,098,558,277.73
  5. Step 5: Solve for x
    x = 335,098,558,277.73/554,466.90
  6. Step 6: Final answer
    x = 604,361.70

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1.5x scale

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.