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Finding the Fourth Proportional to 570,550.77, 787,384.67 and 315,901.98

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Solution

The fourth proportional to 570,550.77, 787,384.67 and 315,901.98 is: 435,958.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,550.77 : 787,384.67 = 315,901.98 : x
  2. Step 2: Convert to fraction form
    570,550.77/787,384.67 = 315,901.98/x
  3. Step 3: Cross multiply
    570,550.77x = 787,384.67 × 315,901.98
  4. Step 4: Simplify right side
    570,550.77x = 248,736,374,695.14
  5. Step 5: Solve for x
    x = 248,736,374,695.14/570,550.77
  6. Step 6: Final answer
    x = 435,958.35

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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.