Home / 740,393.79-1,021,750.23-434,475.30

Finding the Fourth Proportional to 740,393.79, 1,021,750.23 and 434,475.30

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Solution

The fourth proportional to 740,393.79, 1,021,750.23 and 434,475.30 is: 599,579.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,393.79 : 1,021,750.23 = 434,475.30 : x
  2. Step 2: Convert to fraction form
    740,393.79/1,021,750.23 = 434,475.30/x
  3. Step 3: Cross multiply
    740,393.79x = 1,021,750.23 × 434,475.30
  4. Step 4: Simplify right side
    740,393.79x = 443,925,237,704.32
  5. Step 5: Solve for x
    x = 443,925,237,704.32/740,393.79
  6. Step 6: Final answer
    x = 599,579.90

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Double scale
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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.