Home / 912,490.80-1,368,606.60-313,479.60

Finding the Fourth Proportional to 912,490.80, 1,368,606.60 and 313,479.60

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Solution

The fourth proportional to 912,490.80, 1,368,606.60 and 313,479.60 is: 470,174.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,490.80 : 1,368,606.60 = 313,479.60 : x
  2. Step 2: Convert to fraction form
    912,490.80/1,368,606.60 = 313,479.60/x
  3. Step 3: Cross multiply
    912,490.80x = 1,368,606.60 × 313,479.60
  4. Step 4: Simplify right side
    912,490.80x = 429,030,249,525.36
  5. Step 5: Solve for x
    x = 429,030,249,525.36/912,490.80
  6. Step 6: Final answer
    x = 470,174.88

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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.