Home / 845,123.76-1,166,279.76-463,142.16

Finding the Fourth Proportional to 845,123.76, 1,166,279.76 and 463,142.16

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Solution

The fourth proportional to 845,123.76, 1,166,279.76 and 463,142.16 is: 639,141.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,123.76 : 1,166,279.76 = 463,142.16 : x
  2. Step 2: Convert to fraction form
    845,123.76/1,166,279.76 = 463,142.16/x
  3. Step 3: Cross multiply
    845,123.76x = 1,166,279.76 × 463,142.16
  4. Step 4: Simplify right side
    845,123.76x = 540,153,327,210.68
  5. Step 5: Solve for x
    x = 540,153,327,210.68/845,123.76
  6. Step 6: Final answer
    x = 639,141.10

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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.