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Finding the Fourth Proportional to 710,152.68, 980,005.44 and 387,862.92

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Solution

The fourth proportional to 710,152.68, 980,005.44 and 387,862.92 is: 535,247.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,152.68 : 980,005.44 = 387,862.92 : x
  2. Step 2: Convert to fraction form
    710,152.68/980,005.44 = 387,862.92/x
  3. Step 3: Cross multiply
    710,152.68x = 980,005.44 × 387,862.92
  4. Step 4: Simplify right side
    710,152.68x = 380,107,771,574.29
  5. Step 5: Solve for x
    x = 380,107,771,574.29/710,152.68
  6. Step 6: Final answer
    x = 535,247.96

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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.