Home / 870,457.76-1,200,923.70-568,826.72

Finding the Fourth Proportional to 870,457.76, 1,200,923.70 and 568,826.72

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Solution

The fourth proportional to 870,457.76, 1,200,923.70 and 568,826.72 is: 784,779.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,457.76 : 1,200,923.70 = 568,826.72 : x
  2. Step 2: Convert to fraction form
    870,457.76/1,200,923.70 = 568,826.72/x
  3. Step 3: Cross multiply
    870,457.76x = 1,200,923.70 × 568,826.72
  4. Step 4: Simplify right side
    870,457.76x = 683,117,489,241.26
  5. Step 5: Solve for x
    x = 683,117,489,241.26/870,457.76
  6. Step 6: Final answer
    x = 784,779.60

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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.