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Finding the Fourth Proportional to 507,688.54, 700,632.93 and 281,319.46

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Solution

The fourth proportional to 507,688.54, 700,632.93 and 281,319.46 is: 388,233.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,688.54 : 700,632.93 = 281,319.46 : x
  2. Step 2: Convert to fraction form
    507,688.54/700,632.93 = 281,319.46/x
  3. Step 3: Cross multiply
    507,688.54x = 700,632.93 × 281,319.46
  4. Step 4: Simplify right side
    507,688.54x = 197,101,677,525.82
  5. Step 5: Solve for x
    x = 197,101,677,525.82/507,688.54
  6. Step 6: Final answer
    x = 388,233.46

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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.