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Finding the Fourth Proportional to 870,050.15, 1,200,813.51 and 507,474

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Solution

The fourth proportional to 870,050.15, 1,200,813.51 and 507,474 is: 700,398.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,050.15 : 1,200,813.51 = 507,474 : x
  2. Step 2: Convert to fraction form
    870,050.15/1,200,813.51 = 507,474/x
  3. Step 3: Cross multiply
    870,050.15x = 1,200,813.51 × 507,474
  4. Step 4: Simplify right side
    870,050.15x = 609,381,635,173.74
  5. Step 5: Solve for x
    x = 609,381,635,173.74/870,050.15
  6. Step 6: Final answer
    x = 700,398.29

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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.