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Finding the Fourth Proportional to 719,570.02, 993,008.10 and 397,280.74

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Solution

The fourth proportional to 719,570.02, 993,008.10 and 397,280.74 is: 548,248.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,570.02 : 993,008.10 = 397,280.74 : x
  2. Step 2: Convert to fraction form
    719,570.02/993,008.10 = 397,280.74/x
  3. Step 3: Cross multiply
    719,570.02x = 993,008.10 × 397,280.74
  4. Step 4: Simplify right side
    719,570.02x = 394,502,993,663.17
  5. Step 5: Solve for x
    x = 394,502,993,663.17/719,570.02
  6. Step 6: Final answer
    x = 548,248.24

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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.