Home / 687,268.32-948,462.84-429,298.08

Finding the Fourth Proportional to 687,268.32, 948,462.84 and 429,298.08

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Solution

The fourth proportional to 687,268.32, 948,462.84 and 429,298.08 is: 592,451.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,268.32 : 948,462.84 = 429,298.08 : x
  2. Step 2: Convert to fraction form
    687,268.32/948,462.84 = 429,298.08/x
  3. Step 3: Cross multiply
    687,268.32x = 948,462.84 × 429,298.08
  4. Step 4: Simplify right side
    687,268.32x = 407,173,276,163.35
  5. Step 5: Solve for x
    x = 407,173,276,163.35/687,268.32
  6. Step 6: Final answer
    x = 592,451.69

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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.