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Finding the Fourth Proportional to 570,303.03, 786,993.42 and 315,639.03

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Solution

The fourth proportional to 570,303.03, 786,993.42 and 315,639.03 is: 435,568.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,303.03 : 786,993.42 = 315,639.03 : x
  2. Step 2: Convert to fraction form
    570,303.03/786,993.42 = 315,639.03/x
  3. Step 3: Cross multiply
    570,303.03x = 786,993.42 × 315,639.03
  4. Step 4: Simplify right side
    570,303.03x = 248,405,839,705.18
  5. Step 5: Solve for x
    x = 248,405,839,705.18/570,303.03
  6. Step 6: Final answer
    x = 435,568.16

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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.