Home / 870,720.19-1,201,559.10-483,555.58

Finding the Fourth Proportional to 870,720.19, 1,201,559.10 and 483,555.58

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Solution

The fourth proportional to 870,720.19, 1,201,559.10 and 483,555.58 is: 667,287.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,720.19 : 1,201,559.10 = 483,555.58 : x
  2. Step 2: Convert to fraction form
    870,720.19/1,201,559.10 = 483,555.58/x
  3. Step 3: Cross multiply
    870,720.19x = 1,201,559.10 × 483,555.58
  4. Step 4: Simplify right side
    870,720.19x = 581,020,607,504.78
  5. Step 5: Solve for x
    x = 581,020,607,504.78/870,720.19
  6. Step 6: Final answer
    x = 667,287.40

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Double scale
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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.