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Finding the Fourth Proportional to 486,666.69, 671,533.65 and 271,779.36

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Solution

The fourth proportional to 486,666.69, 671,533.65 and 271,779.36 is: 375,018.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,666.69 : 671,533.65 = 271,779.36 : x
  2. Step 2: Convert to fraction form
    486,666.69/671,533.65 = 271,779.36/x
  3. Step 3: Cross multiply
    486,666.69x = 671,533.65 × 271,779.36
  4. Step 4: Simplify right side
    486,666.69x = 182,508,985,615.46
  5. Step 5: Solve for x
    x = 182,508,985,615.46/486,666.69
  6. Step 6: Final answer
    x = 375,018.45

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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.