Home / 787,150.80-1,178,101.80-692,672.40

Finding the Fourth Proportional to 787,150.80, 1,178,101.80 and 692,672.40

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Solution

The fourth proportional to 787,150.80, 1,178,101.80 and 692,672.40 is: 1,036,699.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,150.80 : 1,178,101.80 = 692,672.40 : x
  2. Step 2: Convert to fraction form
    787,150.80/1,178,101.80 = 692,672.40/x
  3. Step 3: Cross multiply
    787,150.80x = 1,178,101.80 × 692,672.40
  4. Step 4: Simplify right side
    787,150.80x = 816,038,601,250.32
  5. Step 5: Solve for x
    x = 816,038,601,250.32/787,150.80
  6. Step 6: Final answer
    x = 1,036,699.20

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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.