Home / 875,136.40-1,312,704.60-816,087.40

Finding the Fourth Proportional to 875,136.40, 1,312,704.60 and 816,087.40

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Solution

The fourth proportional to 875,136.40, 1,312,704.60 and 816,087.40 is: 1,224,131.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,136.40 : 1,312,704.60 = 816,087.40 : x
  2. Step 2: Convert to fraction form
    875,136.40/1,312,704.60 = 816,087.40/x
  3. Step 3: Cross multiply
    875,136.40x = 1,312,704.60 × 816,087.40
  4. Step 4: Simplify right side
    875,136.40x = 1,071,281,683,982.04
  5. Step 5: Solve for x
    x = 1,071,281,683,982.04/875,136.40
  6. Step 6: Final answer
    x = 1,224,131.10

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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.