Home / 870,218.58-1,200,837.78-483,056.40

Finding the Fourth Proportional to 870,218.58, 1,200,837.78 and 483,056.40

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Solution

The fourth proportional to 870,218.58, 1,200,837.78 and 483,056.40 is: 666,582.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,218.58 : 1,200,837.78 = 483,056.40 : x
  2. Step 2: Convert to fraction form
    870,218.58/1,200,837.78 = 483,056.40/x
  3. Step 3: Cross multiply
    870,218.58x = 1,200,837.78 × 483,056.40
  4. Step 4: Simplify right side
    870,218.58x = 580,072,374,990.79
  5. Step 5: Solve for x
    x = 580,072,374,990.79/870,218.58
  6. Step 6: Final answer
    x = 666,582.38

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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.