Home / 879,263.64-1,316,844.42-642,017.88

Finding the Fourth Proportional to 879,263.64, 1,316,844.42 and 642,017.88

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Solution

The fourth proportional to 879,263.64, 1,316,844.42 and 642,017.88 is: 961,529.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,263.64 : 1,316,844.42 = 642,017.88 : x
  2. Step 2: Convert to fraction form
    879,263.64/1,316,844.42 = 642,017.88/x
  3. Step 3: Cross multiply
    879,263.64x = 1,316,844.42 × 642,017.88
  4. Step 4: Simplify right side
    879,263.64x = 845,437,662,818.23
  5. Step 5: Solve for x
    x = 845,437,662,818.23/879,263.64
  6. Step 6: Final answer
    x = 961,529.20

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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.