Home / 1,292,312.64-1,783,443.84-719,316.48

Finding the Fourth Proportional to 1,292,312.64, 1,783,443.84 and 719,316.48

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Solution

The fourth proportional to 1,292,312.64, 1,783,443.84 and 719,316.48 is: 992,685.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,312.64 : 1,783,443.84 = 719,316.48 : x
  2. Step 2: Convert to fraction form
    1,292,312.64/1,783,443.84 = 719,316.48/x
  3. Step 3: Cross multiply
    1,292,312.64x = 1,783,443.84 × 719,316.48
  4. Step 4: Simplify right side
    1,292,312.64x = 1,282,860,545,266.48
  5. Step 5: Solve for x
    x = 1,282,860,545,266.48/1,292,312.64
  6. Step 6: Final answer
    x = 992,685.91

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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.