Home / 879,649.40-1,319,474.10-864,097.40

Finding the Fourth Proportional to 879,649.40, 1,319,474.10 and 864,097.40

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Solution

The fourth proportional to 879,649.40, 1,319,474.10 and 864,097.40 is: 1,296,146.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,649.40 : 1,319,474.10 = 864,097.40 : x
  2. Step 2: Convert to fraction form
    879,649.40/1,319,474.10 = 864,097.40/x
  3. Step 3: Cross multiply
    879,649.40x = 1,319,474.10 × 864,097.40
  4. Step 4: Simplify right side
    879,649.40x = 1,140,154,139,177.34
  5. Step 5: Solve for x
    x = 1,140,154,139,177.34/879,649.40
  6. Step 6: Final answer
    x = 1,296,146.10

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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.