Home / 771,861.58-1,065,168.96-470,055.58

Finding the Fourth Proportional to 771,861.58, 1,065,168.96 and 470,055.58

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Solution

The fourth proportional to 771,861.58, 1,065,168.96 and 470,055.58 is: 648,676.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,861.58 : 1,065,168.96 = 470,055.58 : x
  2. Step 2: Convert to fraction form
    771,861.58/1,065,168.96 = 470,055.58/x
  3. Step 3: Cross multiply
    771,861.58x = 1,065,168.96 × 470,055.58
  4. Step 4: Simplify right side
    771,861.58x = 500,688,613,290.80
  5. Step 5: Solve for x
    x = 500,688,613,290.80/771,861.58
  6. Step 6: Final answer
    x = 648,676.69

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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.