Home / 869,124.40-1,303,686.60-308,215.60

Finding the Fourth Proportional to 869,124.40, 1,303,686.60 and 308,215.60

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Solution

The fourth proportional to 869,124.40, 1,303,686.60 and 308,215.60 is: 462,323.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,124.40 : 1,303,686.60 = 308,215.60 : x
  2. Step 2: Convert to fraction form
    869,124.40/1,303,686.60 = 308,215.60/x
  3. Step 3: Cross multiply
    869,124.40x = 1,303,686.60 × 308,215.60
  4. Step 4: Simplify right side
    869,124.40x = 401,816,547,630.96
  5. Step 5: Solve for x
    x = 401,816,547,630.96/869,124.40
  6. Step 6: Final answer
    x = 462,323.40

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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.