Home / 845,412-1,166,749.25-482,890.02

Finding the Fourth Proportional to 845,412, 1,166,749.25 and 482,890.02

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Solution

The fourth proportional to 845,412, 1,166,749.25 and 482,890.02 is: 666,434.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,412 : 1,166,749.25 = 482,890.02 : x
  2. Step 2: Convert to fraction form
    845,412/1,166,749.25 = 482,890.02/x
  3. Step 3: Cross multiply
    845,412x = 1,166,749.25 × 482,890.02
  4. Step 4: Simplify right side
    845,412x = 563,411,566,253.04
  5. Step 5: Solve for x
    x = 563,411,566,253.04/845,412
  6. Step 6: Final answer
    x = 666,434.31

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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.