Home / 1,291,482.60-1,782,246.02-718,522.60

Finding the Fourth Proportional to 1,291,482.60, 1,782,246.02 and 718,522.60

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Solution

The fourth proportional to 1,291,482.60, 1,782,246.02 and 718,522.60 is: 991,561.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,482.60 : 1,782,246.02 = 718,522.60 : x
  2. Step 2: Convert to fraction form
    1,291,482.60/1,782,246.02 = 718,522.60/x
  3. Step 3: Cross multiply
    1,291,482.60x = 1,782,246.02 × 718,522.60
  4. Step 4: Simplify right side
    1,291,482.60x = 1,280,584,044,130.05
  5. Step 5: Solve for x
    x = 1,280,584,044,130.05/1,291,482.60
  6. Step 6: Final answer
    x = 991,561.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.