Home / 1,138,336.34-1,570,904.70-629,038.72

Finding the Fourth Proportional to 1,138,336.34, 1,570,904.70 and 629,038.72

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Solution

The fourth proportional to 1,138,336.34, 1,570,904.70 and 629,038.72 is: 868,073.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,336.34 : 1,570,904.70 = 629,038.72 : x
  2. Step 2: Convert to fraction form
    1,138,336.34/1,570,904.70 = 629,038.72/x
  3. Step 3: Cross multiply
    1,138,336.34x = 1,570,904.70 × 629,038.72
  4. Step 4: Simplify right side
    1,138,336.34x = 988,159,873,875.46
  5. Step 5: Solve for x
    x = 988,159,873,875.46/1,138,336.34
  6. Step 6: Final answer
    x = 868,073.73

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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.