Home / 710,688.80-1,066,033.20-289,735.20

Finding the Fourth Proportional to 710,688.80, 1,066,033.20 and 289,735.20

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Solution

The fourth proportional to 710,688.80, 1,066,033.20 and 289,735.20 is: 434,602.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,688.80 : 1,066,033.20 = 289,735.20 : x
  2. Step 2: Convert to fraction form
    710,688.80/1,066,033.20 = 289,735.20/x
  3. Step 3: Cross multiply
    710,688.80x = 1,066,033.20 × 289,735.20
  4. Step 4: Simplify right side
    710,688.80x = 308,867,342,408.64
  5. Step 5: Solve for x
    x = 308,867,342,408.64/710,688.80
  6. Step 6: Final answer
    x = 434,602.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.