Home / 1,424,579-2,136,868.50-427,307

Finding the Fourth Proportional to 1,424,579, 2,136,868.50 and 427,307

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Solution

The fourth proportional to 1,424,579, 2,136,868.50 and 427,307 is: 640,960.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,579 : 2,136,868.50 = 427,307 : x
  2. Step 2: Convert to fraction form
    1,424,579/2,136,868.50 = 427,307/x
  3. Step 3: Cross multiply
    1,424,579x = 2,136,868.50 × 427,307
  4. Step 4: Simplify right side
    1,424,579x = 913,098,868,129.50
  5. Step 5: Solve for x
    x = 913,098,868,129.50/1,424,579
  6. Step 6: Final answer
    x = 640,960.50

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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.