Home / 671,145.10-926,180.37-369,339.10

Finding the Fourth Proportional to 671,145.10, 926,180.37 and 369,339.10

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Solution

The fourth proportional to 671,145.10, 926,180.37 and 369,339.10 is: 509,688.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,145.10 : 926,180.37 = 369,339.10 : x
  2. Step 2: Convert to fraction form
    671,145.10/926,180.37 = 369,339.10/x
  3. Step 3: Cross multiply
    671,145.10x = 926,180.37 × 369,339.10
  4. Step 4: Simplify right side
    671,145.10x = 342,074,617,815.87
  5. Step 5: Solve for x
    x = 342,074,617,815.87/671,145.10
  6. Step 6: Final answer
    x = 509,688.02

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1.5x scale

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.