Home / 657,245.04-906,430.35-427,719.72

Finding the Fourth Proportional to 657,245.04, 906,430.35 and 427,719.72

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Solution

The fourth proportional to 657,245.04, 906,430.35 and 427,719.72 is: 589,883.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,245.04 : 906,430.35 = 427,719.72 : x
  2. Step 2: Convert to fraction form
    657,245.04/906,430.35 = 427,719.72/x
  3. Step 3: Cross multiply
    657,245.04x = 906,430.35 × 427,719.72
  4. Step 4: Simplify right side
    657,245.04x = 387,698,135,501.50
  5. Step 5: Solve for x
    x = 387,698,135,501.50/657,245.04
  6. Step 6: Final answer
    x = 589,883.70

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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.