Home / 426,779.21-588,271.28-288,914.66

Finding the Fourth Proportional to 426,779.21, 588,271.28 and 288,914.66

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Solution

The fourth proportional to 426,779.21, 588,271.28 and 288,914.66 is: 398,239.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,779.21 : 588,271.28 = 288,914.66 : x
  2. Step 2: Convert to fraction form
    426,779.21/588,271.28 = 288,914.66/x
  3. Step 3: Cross multiply
    426,779.21x = 588,271.28 × 288,914.66
  4. Step 4: Simplify right side
    426,779.21x = 169,960,199,041.93
  5. Step 5: Solve for x
    x = 169,960,199,041.93/426,779.21
  6. Step 6: Final answer
    x = 398,239.17

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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.