Home / 761,707.82-1,051,156.80-422,176.07

Finding the Fourth Proportional to 761,707.82, 1,051,156.80 and 422,176.07

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Solution

The fourth proportional to 761,707.82, 1,051,156.80 and 422,176.07 is: 582,602.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,707.82 : 1,051,156.80 = 422,176.07 : x
  2. Step 2: Convert to fraction form
    761,707.82/1,051,156.80 = 422,176.07/x
  3. Step 3: Cross multiply
    761,707.82x = 1,051,156.80 × 422,176.07
  4. Step 4: Simplify right side
    761,707.82x = 443,773,249,405.67
  5. Step 5: Solve for x
    x = 443,773,249,405.67/761,707.82
  6. Step 6: Final answer
    x = 582,602.98

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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.