Home / 578,032.40-867,048.60-400,739.60

Finding the Fourth Proportional to 578,032.40, 867,048.60 and 400,739.60

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Solution

The fourth proportional to 578,032.40, 867,048.60 and 400,739.60 is: 601,109.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,032.40 : 867,048.60 = 400,739.60 : x
  2. Step 2: Convert to fraction form
    578,032.40/867,048.60 = 400,739.60/x
  3. Step 3: Cross multiply
    578,032.40x = 867,048.60 × 400,739.60
  4. Step 4: Simplify right side
    578,032.40x = 347,460,709,144.56
  5. Step 5: Solve for x
    x = 347,460,709,144.56/578,032.40
  6. Step 6: Final answer
    x = 601,109.40

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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.