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Finding the Fourth Proportional to 570,552.27, 787,386.74 and 315,903.48

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Solution

The fourth proportional to 570,552.27, 787,386.74 and 315,903.48 is: 435,960.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,552.27 : 787,386.74 = 315,903.48 : x
  2. Step 2: Convert to fraction form
    570,552.27/787,386.74 = 315,903.48/x
  3. Step 3: Cross multiply
    570,552.27x = 787,386.74 × 315,903.48
  4. Step 4: Simplify right side
    570,552.27x = 248,738,209,692.34
  5. Step 5: Solve for x
    x = 248,738,209,692.34/570,552.27
  6. Step 6: Final answer
    x = 435,960.42

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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.