Home / 1,122,362.40-1,683,543.60-785,783.10

Finding the Fourth Proportional to 1,122,362.40, 1,683,543.60 and 785,783.10

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Solution

The fourth proportional to 1,122,362.40, 1,683,543.60 and 785,783.10 is: 1,178,674.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,362.40 : 1,683,543.60 = 785,783.10 : x
  2. Step 2: Convert to fraction form
    1,122,362.40/1,683,543.60 = 785,783.10/x
  3. Step 3: Cross multiply
    1,122,362.40x = 1,683,543.60 × 785,783.10
  4. Step 4: Simplify right side
    1,122,362.40x = 1,322,900,108,993.16
  5. Step 5: Solve for x
    x = 1,322,900,108,993.16/1,122,362.40
  6. Step 6: Final answer
    x = 1,178,674.65

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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.