Home / 497,588.40-686,673.18-282,799.80

Finding the Fourth Proportional to 497,588.40, 686,673.18 and 282,799.80

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Solution

The fourth proportional to 497,588.40, 686,673.18 and 282,799.80 is: 390,264.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,588.40 : 686,673.18 = 282,799.80 : x
  2. Step 2: Convert to fraction form
    497,588.40/686,673.18 = 282,799.80/x
  3. Step 3: Cross multiply
    497,588.40x = 686,673.18 × 282,799.80
  4. Step 4: Simplify right side
    497,588.40x = 194,191,037,969.36
  5. Step 5: Solve for x
    x = 194,191,037,969.36/497,588.40
  6. Step 6: Final answer
    x = 390,264.40

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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.