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Finding the Fourth Proportional to 894,779.98, 1,234,778.06 and 486,889.90

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Solution

The fourth proportional to 894,779.98, 1,234,778.06 and 486,889.90 is: 671,898.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    894,779.98 : 1,234,778.06 = 486,889.90 : x
  2. Step 2: Convert to fraction form
    894,779.98/1,234,778.06 = 486,889.90/x
  3. Step 3: Cross multiply
    894,779.98x = 1,234,778.06 × 486,889.90
  4. Step 4: Simplify right side
    894,779.98x = 601,200,966,155.59
  5. Step 5: Solve for x
    x = 601,200,966,155.59/894,779.98
  6. Step 6: Final answer
    x = 671,898.10

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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.