Home / 1,018,975.81-1,528,878.89-513,682.42

Finding the Fourth Proportional to 1,018,975.81, 1,528,878.89 and 513,682.42

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Solution

The fourth proportional to 1,018,975.81, 1,528,878.89 and 513,682.42 is: 770,732.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,975.81 : 1,528,878.89 = 513,682.42 : x
  2. Step 2: Convert to fraction form
    1,018,975.81/1,528,878.89 = 513,682.42/x
  3. Step 3: Cross multiply
    1,018,975.81x = 1,528,878.89 × 513,682.42
  4. Step 4: Simplify right side
    1,018,975.81x = 785,358,208,102.11
  5. Step 5: Solve for x
    x = 785,358,208,102.11/1,018,975.81
  6. Step 6: Final answer
    x = 770,732.93

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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.