Home / 497,579.52-686,678.40-282,756.16

Finding the Fourth Proportional to 497,579.52, 686,678.40 and 282,756.16

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Solution

The fourth proportional to 497,579.52, 686,678.40 and 282,756.16 is: 390,214.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,579.52 : 686,678.40 = 282,756.16 : x
  2. Step 2: Convert to fraction form
    497,579.52/686,678.40 = 282,756.16/x
  3. Step 3: Cross multiply
    497,579.52x = 686,678.40 × 282,756.16
  4. Step 4: Simplify right side
    497,579.52x = 194,162,547,538.94
  5. Step 5: Solve for x
    x = 194,162,547,538.94/497,579.52
  6. Step 6: Final answer
    x = 390,214.11

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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.