Home / 497,557.90-686,630.09-282,698.25

Finding the Fourth Proportional to 497,557.90, 686,630.09 and 282,698.25

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Solution

The fourth proportional to 497,557.90, 686,630.09 and 282,698.25 is: 390,123.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,557.90 : 686,630.09 = 282,698.25 : x
  2. Step 2: Convert to fraction form
    497,557.90/686,630.09 = 282,698.25/x
  3. Step 3: Cross multiply
    497,557.90x = 686,630.09 × 282,698.25
  4. Step 4: Simplify right side
    497,557.90x = 194,109,124,840.34
  5. Step 5: Solve for x
    x = 194,109,124,840.34/497,557.90
  6. Step 6: Final answer
    x = 390,123.69

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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.