Home / 912,712.64-1,368,777.80-313,529.32

Finding the Fourth Proportional to 912,712.64, 1,368,777.80 and 313,529.32

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Solution

The fourth proportional to 912,712.64, 1,368,777.80 and 313,529.32 is: 470,193.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,712.64 : 1,368,777.80 = 313,529.32 : x
  2. Step 2: Convert to fraction form
    912,712.64/1,368,777.80 = 313,529.32/x
  3. Step 3: Cross multiply
    912,712.64x = 1,368,777.80 × 313,529.32
  4. Step 4: Simplify right side
    912,712.64x = 429,151,966,778.72
  5. Step 5: Solve for x
    x = 429,151,966,778.72/912,712.64
  6. Step 6: Final answer
    x = 470,193.96

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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.