Home / 570,619.13-787,448.75-308,973.17

Finding the Fourth Proportional to 570,619.13, 787,448.75 and 308,973.17

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Solution

The fourth proportional to 570,619.13, 787,448.75 and 308,973.17 is: 426,379.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,619.13 : 787,448.75 = 308,973.17 : x
  2. Step 2: Convert to fraction form
    570,619.13/787,448.75 = 308,973.17/x
  3. Step 3: Cross multiply
    570,619.13x = 787,448.75 × 308,973.17
  4. Step 4: Simplify right side
    570,619.13x = 243,300,536,923.79
  5. Step 5: Solve for x
    x = 243,300,536,923.79/570,619.13
  6. Step 6: Final answer
    x = 426,379.92

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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.