Home / 528,621.60-730,103.20-348,140.24

Finding the Fourth Proportional to 528,621.60, 730,103.20 and 348,140.24

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Solution

The fourth proportional to 528,621.60, 730,103.20 and 348,140.24 is: 480,832.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,621.60 : 730,103.20 = 348,140.24 : x
  2. Step 2: Convert to fraction form
    528,621.60/730,103.20 = 348,140.24/x
  3. Step 3: Cross multiply
    528,621.60x = 730,103.20 × 348,140.24
  4. Step 4: Simplify right side
    528,621.60x = 254,178,303,272.77
  5. Step 5: Solve for x
    x = 254,178,303,272.77/528,621.60
  6. Step 6: Final answer
    x = 480,832.23

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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.