Home / 869,140.60-1,303,710.90-840,110.20

Finding the Fourth Proportional to 869,140.60, 1,303,710.90 and 840,110.20

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Solution

The fourth proportional to 869,140.60, 1,303,710.90 and 840,110.20 is: 1,260,165.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,140.60 : 1,303,710.90 = 840,110.20 : x
  2. Step 2: Convert to fraction form
    869,140.60/1,303,710.90 = 840,110.20/x
  3. Step 3: Cross multiply
    869,140.60x = 1,303,710.90 × 840,110.20
  4. Step 4: Simplify right side
    869,140.60x = 1,095,260,824,941.18
  5. Step 5: Solve for x
    x = 1,095,260,824,941.18/869,140.60
  6. Step 6: Final answer
    x = 1,260,165.30

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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.