Home / 926,978.72-1,279,360.22-669,688.08

Finding the Fourth Proportional to 926,978.72, 1,279,360.22 and 669,688.08

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Solution

The fourth proportional to 926,978.72, 1,279,360.22 and 669,688.08 is: 924,263.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,978.72 : 1,279,360.22 = 669,688.08 : x
  2. Step 2: Convert to fraction form
    926,978.72/1,279,360.22 = 669,688.08/x
  3. Step 3: Cross multiply
    926,978.72x = 1,279,360.22 × 669,688.08
  4. Step 4: Simplify right side
    926,978.72x = 856,772,286,011.74
  5. Step 5: Solve for x
    x = 856,772,286,011.74/926,978.72
  6. Step 6: Final answer
    x = 924,263.17

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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.