Home / 570,611.72-787,444.13-315,962.91

Finding the Fourth Proportional to 570,611.72, 787,444.13 and 315,962.91

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Solution

The fourth proportional to 570,611.72, 787,444.13 and 315,962.91 is: 436,028.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,611.72 : 787,444.13 = 315,962.91 : x
  2. Step 2: Convert to fraction form
    570,611.72/787,444.13 = 315,962.91/x
  3. Step 3: Cross multiply
    570,611.72x = 787,444.13 × 315,962.91
  4. Step 4: Simplify right side
    570,611.72x = 248,803,139,567.13
  5. Step 5: Solve for x
    x = 248,803,139,567.13/570,611.72
  6. Step 6: Final answer
    x = 436,028.79

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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.