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Finding the Fourth Proportional to 453,407.70, 680,111.55 and 383,423.70

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Solution

The fourth proportional to 453,407.70, 680,111.55 and 383,423.70 is: 575,135.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,407.70 : 680,111.55 = 383,423.70 : x
  2. Step 2: Convert to fraction form
    453,407.70/680,111.55 = 383,423.70/x
  3. Step 3: Cross multiply
    453,407.70x = 680,111.55 × 383,423.70
  4. Step 4: Simplify right side
    453,407.70x = 260,770,886,913.74
  5. Step 5: Solve for x
    x = 260,770,886,913.74/453,407.70
  6. Step 6: Final answer
    x = 575,135.55

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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.