Home / 870,054.59-1,200,819.62-507,478.43

Finding the Fourth Proportional to 870,054.59, 1,200,819.62 and 507,478.43

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Solution

The fourth proportional to 870,054.59, 1,200,819.62 and 507,478.43 is: 700,404.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,054.59 : 1,200,819.62 = 507,478.43 : x
  2. Step 2: Convert to fraction form
    870,054.59/1,200,819.62 = 507,478.43/x
  3. Step 3: Cross multiply
    870,054.59x = 1,200,819.62 × 507,478.43
  4. Step 4: Simplify right side
    870,054.59x = 609,390,053,961.97
  5. Step 5: Solve for x
    x = 609,390,053,961.97/870,054.59
  6. Step 6: Final answer
    x = 700,404.39

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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.