Home / 676,745.42-933,846.58-390,210.16

Finding the Fourth Proportional to 676,745.42, 933,846.58 and 390,210.16

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Solution

The fourth proportional to 676,745.42, 933,846.58 and 390,210.16 is: 538,454.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,745.42 : 933,846.58 = 390,210.16 : x
  2. Step 2: Convert to fraction form
    676,745.42/933,846.58 = 390,210.16/x
  3. Step 3: Cross multiply
    676,745.42x = 933,846.58 × 390,210.16
  4. Step 4: Simplify right side
    676,745.42x = 364,396,423,397.25
  5. Step 5: Solve for x
    x = 364,396,423,397.25/676,745.42
  6. Step 6: Final answer
    x = 538,454.21

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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.