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Finding the Fourth Proportional to 649,430.40, 973,684.80 and 249,916.80

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Solution

The fourth proportional to 649,430.40, 973,684.80 and 249,916.80 is: 374,697.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,430.40 : 973,684.80 = 249,916.80 : x
  2. Step 2: Convert to fraction form
    649,430.40/973,684.80 = 249,916.80/x
  3. Step 3: Cross multiply
    649,430.40x = 973,684.80 × 249,916.80
  4. Step 4: Simplify right side
    649,430.40x = 243,340,189,424.64
  5. Step 5: Solve for x
    x = 243,340,189,424.64/649,430.40
  6. Step 6: Final answer
    x = 374,697.87

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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.