Home / 759,621.60-1,138,510.80-338,450.40

Finding the Fourth Proportional to 759,621.60, 1,138,510.80 and 338,450.40

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Solution

The fourth proportional to 759,621.60, 1,138,510.80 and 338,450.40 is: 507,264.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,621.60 : 1,138,510.80 = 338,450.40 : x
  2. Step 2: Convert to fraction form
    759,621.60/1,138,510.80 = 338,450.40/x
  3. Step 3: Cross multiply
    759,621.60x = 1,138,510.80 × 338,450.40
  4. Step 4: Simplify right side
    759,621.60x = 385,329,435,664.32
  5. Step 5: Solve for x
    x = 385,329,435,664.32/759,621.60
  6. Step 6: Final answer
    x = 507,264.98

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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.