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Finding the Fourth Proportional to 570,553.77, 787,388.81 and 315,904.98

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Solution

The fourth proportional to 570,553.77, 787,388.81 and 315,904.98 is: 435,962.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,553.77 : 787,388.81 = 315,904.98 : x
  2. Step 2: Convert to fraction form
    570,553.77/787,388.81 = 315,904.98/x
  3. Step 3: Cross multiply
    570,553.77x = 787,388.81 × 315,904.98
  4. Step 4: Simplify right side
    570,553.77x = 248,740,044,695.75
  5. Step 5: Solve for x
    x = 248,740,044,695.75/570,553.77
  6. Step 6: Final answer
    x = 435,962.49

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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.