Home / 665,421.07-918,281.51-359,497.27

Finding the Fourth Proportional to 665,421.07, 918,281.51 and 359,497.27

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Solution

The fourth proportional to 665,421.07, 918,281.51 and 359,497.27 is: 496,106.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,421.07 : 918,281.51 = 359,497.27 : x
  2. Step 2: Convert to fraction form
    665,421.07/918,281.51 = 359,497.27/x
  3. Step 3: Cross multiply
    665,421.07x = 918,281.51 × 359,497.27
  4. Step 4: Simplify right side
    665,421.07x = 330,119,695,936.48
  5. Step 5: Solve for x
    x = 330,119,695,936.48/665,421.07
  6. Step 6: Final answer
    x = 496,106.47

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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.