Home / 1,021,426.40-1,532,139.60-347,684.60

Finding the Fourth Proportional to 1,021,426.40, 1,532,139.60 and 347,684.60

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Solution

The fourth proportional to 1,021,426.40, 1,532,139.60 and 347,684.60 is: 521,526.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,426.40 : 1,532,139.60 = 347,684.60 : x
  2. Step 2: Convert to fraction form
    1,021,426.40/1,532,139.60 = 347,684.60/x
  3. Step 3: Cross multiply
    1,021,426.40x = 1,532,139.60 × 347,684.60
  4. Step 4: Simplify right side
    1,021,426.40x = 532,701,343,970.16
  5. Step 5: Solve for x
    x = 532,701,343,970.16/1,021,426.40
  6. Step 6: Final answer
    x = 521,526.90

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Double scale
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Similar ratio
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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.