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Finding the Fourth Proportional to 554,463.80, 831,695.70 and 302,521.40

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Solution

The fourth proportional to 554,463.80, 831,695.70 and 302,521.40 is: 453,782.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,463.80 : 831,695.70 = 302,521.40 : x
  2. Step 2: Convert to fraction form
    554,463.80/831,695.70 = 302,521.40/x
  3. Step 3: Cross multiply
    554,463.80x = 831,695.70 × 302,521.40
  4. Step 4: Simplify right side
    554,463.80x = 251,605,747,537.98
  5. Step 5: Solve for x
    x = 251,605,747,537.98/554,463.80
  6. Step 6: Final answer
    x = 453,782.10

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Similar ratio
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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.