Home / 788,812.70-1,183,348.65-339,748.70

Finding the Fourth Proportional to 788,812.70, 1,183,348.65 and 339,748.70

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Solution

The fourth proportional to 788,812.70, 1,183,348.65 and 339,748.70 is: 509,678.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,812.70 : 1,183,348.65 = 339,748.70 : x
  2. Step 2: Convert to fraction form
    788,812.70/1,183,348.65 = 339,748.70/x
  3. Step 3: Cross multiply
    788,812.70x = 1,183,348.65 × 339,748.70
  4. Step 4: Simplify right side
    788,812.70x = 402,041,165,484.26
  5. Step 5: Solve for x
    x = 402,041,165,484.26/788,812.70
  6. Step 6: Final answer
    x = 509,678.87

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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.