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Finding the Fourth Proportional to 710,008.16, 979,560.24 and 455,496.80

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Solution

The fourth proportional to 710,008.16, 979,560.24 and 455,496.80 is: 628,424.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,008.16 : 979,560.24 = 455,496.80 : x
  2. Step 2: Convert to fraction form
    710,008.16/979,560.24 = 455,496.80/x
  3. Step 3: Cross multiply
    710,008.16x = 979,560.24 × 455,496.80
  4. Step 4: Simplify right side
    710,008.16x = 446,186,554,727.23
  5. Step 5: Solve for x
    x = 446,186,554,727.23/710,008.16
  6. Step 6: Final answer
    x = 628,424.54

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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.