Home / 497,749.44-686,877.12-282,885.76

Finding the Fourth Proportional to 497,749.44, 686,877.12 and 282,885.76

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Solution

The fourth proportional to 497,749.44, 686,877.12 and 282,885.76 is: 390,372.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,749.44 : 686,877.12 = 282,885.76 : x
  2. Step 2: Convert to fraction form
    497,749.44/686,877.12 = 282,885.76/x
  3. Step 3: Cross multiply
    497,749.44x = 686,877.12 × 282,885.76
  4. Step 4: Simplify right side
    497,749.44x = 194,307,756,117.81
  5. Step 5: Solve for x
    x = 194,307,756,117.81/497,749.44
  6. Step 6: Final answer
    x = 390,372.63

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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.