Home / 867,051.12-1,300,372.46-488,136.36

Finding the Fourth Proportional to 867,051.12, 1,300,372.46 and 488,136.36

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Solution

The fourth proportional to 867,051.12, 1,300,372.46 and 488,136.36 is: 732,089.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,051.12 : 1,300,372.46 = 488,136.36 : x
  2. Step 2: Convert to fraction form
    867,051.12/1,300,372.46 = 488,136.36/x
  3. Step 3: Cross multiply
    867,051.12x = 1,300,372.46 × 488,136.36
  4. Step 4: Simplify right side
    867,051.12x = 634,759,079,268.65
  5. Step 5: Solve for x
    x = 634,759,079,268.65/867,051.12
  6. Step 6: Final answer
    x = 732,089.57

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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.