Home / 735,142.60-1,102,130.70-402,718.60

Finding the Fourth Proportional to 735,142.60, 1,102,130.70 and 402,718.60

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Solution

The fourth proportional to 735,142.60, 1,102,130.70 and 402,718.60 is: 603,758.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    735,142.60 : 1,102,130.70 = 402,718.60 : x
  2. Step 2: Convert to fraction form
    735,142.60/1,102,130.70 = 402,718.60/x
  3. Step 3: Cross multiply
    735,142.60x = 1,102,130.70 × 402,718.60
  4. Step 4: Simplify right side
    735,142.60x = 443,848,532,521.02
  5. Step 5: Solve for x
    x = 443,848,532,521.02/735,142.60
  6. Step 6: Final answer
    x = 603,758.42

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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.