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Finding the Fourth Proportional to 356,509.60, 534,764.40 and 286,525.60

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Solution

The fourth proportional to 356,509.60, 534,764.40 and 286,525.60 is: 429,788.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,509.60 : 534,764.40 = 286,525.60 : x
  2. Step 2: Convert to fraction form
    356,509.60/534,764.40 = 286,525.60/x
  3. Step 3: Cross multiply
    356,509.60x = 534,764.40 × 286,525.60
  4. Step 4: Simplify right side
    356,509.60x = 153,223,690,568.64
  5. Step 5: Solve for x
    x = 153,223,690,568.64/356,509.60
  6. Step 6: Final answer
    x = 429,788.40

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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.