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Finding the Fourth Proportional to 710,323, 980,233.44 and 388,024.81

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Solution

The fourth proportional to 710,323, 980,233.44 and 388,024.81 is: 535,467.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,323 : 980,233.44 = 388,024.81 : x
  2. Step 2: Convert to fraction form
    710,323/980,233.44 = 388,024.81/x
  3. Step 3: Cross multiply
    710,323x = 980,233.44 × 388,024.81
  4. Step 4: Simplify right side
    710,323x = 380,354,894,311.65
  5. Step 5: Solve for x
    x = 380,354,894,311.65/710,323
  6. Step 6: Final answer
    x = 535,467.52

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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.