Home / 766,381.40-1,057,526.86-471,984.52

Finding the Fourth Proportional to 766,381.40, 1,057,526.86 and 471,984.52

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Solution

The fourth proportional to 766,381.40, 1,057,526.86 and 471,984.52 is: 651,289.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,381.40 : 1,057,526.86 = 471,984.52 : x
  2. Step 2: Convert to fraction form
    766,381.40/1,057,526.86 = 471,984.52/x
  3. Step 3: Cross multiply
    766,381.40x = 1,057,526.86 × 471,984.52
  4. Step 4: Simplify right side
    766,381.40x = 499,136,307,404.21
  5. Step 5: Solve for x
    x = 499,136,307,404.21/766,381.40
  6. Step 6: Final answer
    x = 651,289.69

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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.