Home / 1,018,974.81-1,528,877.39-513,681.42

Finding the Fourth Proportional to 1,018,974.81, 1,528,877.39 and 513,681.42

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Solution

The fourth proportional to 1,018,974.81, 1,528,877.39 and 513,681.42 is: 770,731.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,974.81 : 1,528,877.39 = 513,681.42 : x
  2. Step 2: Convert to fraction form
    1,018,974.81/1,528,877.39 = 513,681.42/x
  3. Step 3: Cross multiply
    1,018,974.81x = 1,528,877.39 × 513,681.42
  4. Step 4: Simplify right side
    1,018,974.81x = 785,355,900,399.40
  5. Step 5: Solve for x
    x = 785,355,900,399.40/1,018,974.81
  6. Step 6: Final answer
    x = 770,731.42

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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.