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Finding the Fourth Proportional to 608,779.40, 913,293.66 and 209,368.20

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Solution

The fourth proportional to 608,779.40, 913,293.66 and 209,368.20 is: 314,095.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,779.40 : 913,293.66 = 209,368.20 : x
  2. Step 2: Convert to fraction form
    608,779.40/913,293.66 = 209,368.20/x
  3. Step 3: Cross multiply
    608,779.40x = 913,293.66 × 209,368.20
  4. Step 4: Simplify right side
    608,779.40x = 191,214,649,665.61
  5. Step 5: Solve for x
    x = 191,214,649,665.61/608,779.40
  6. Step 6: Final answer
    x = 314,095.14

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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.