Home / 1,400,009.55-1,931,912.98-788,130.69

Finding the Fourth Proportional to 1,400,009.55, 1,931,912.98 and 788,130.69

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Solution

The fourth proportional to 1,400,009.55, 1,931,912.98 and 788,130.69 is: 1,087,563.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400,009.55 : 1,931,912.98 = 788,130.69 : x
  2. Step 2: Convert to fraction form
    1,400,009.55/1,931,912.98 = 788,130.69/x
  3. Step 3: Cross multiply
    1,400,009.55x = 1,931,912.98 × 788,130.69
  4. Step 4: Simplify right side
    1,400,009.55x = 1,522,599,909,947.36
  5. Step 5: Solve for x
    x = 1,522,599,909,947.36/1,400,009.55
  6. Step 6: Final answer
    x = 1,087,563.95

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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.