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Finding the Fourth Proportional to 570,783.52, 787,637.90 and 316,129.24

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Solution

The fourth proportional to 570,783.52, 787,637.90 and 316,129.24 is: 436,234.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,783.52 : 787,637.90 = 316,129.24 : x
  2. Step 2: Convert to fraction form
    570,783.52/787,637.90 = 316,129.24/x
  3. Step 3: Cross multiply
    570,783.52x = 787,637.90 × 316,129.24
  4. Step 4: Simplify right side
    570,783.52x = 248,995,372,497.07
  5. Step 5: Solve for x
    x = 248,995,372,497.07/570,783.52
  6. Step 6: Final answer
    x = 436,234.34

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1.5x scale

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.