Home / 1,140,967.98-1,712,312.73-780,276.96

Finding the Fourth Proportional to 1,140,967.98, 1,712,312.73 and 780,276.96

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Solution

The fourth proportional to 1,140,967.98, 1,712,312.73 and 780,276.96 is: 1,171,004.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,967.98 : 1,712,312.73 = 780,276.96 : x
  2. Step 2: Convert to fraction form
    1,140,967.98/1,712,312.73 = 780,276.96/x
  3. Step 3: Cross multiply
    1,140,967.98x = 1,712,312.73 × 780,276.96
  4. Step 4: Simplify right side
    1,140,967.98x = 1,336,078,171,533.70
  5. Step 5: Solve for x
    x = 1,336,078,171,533.70/1,140,967.98
  6. Step 6: Final answer
    x = 1,171,004.09

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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.