Home / 730,770.30-1,008,459.45-408,479.40

Finding the Fourth Proportional to 730,770.30, 1,008,459.45 and 408,479.40

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Solution

The fourth proportional to 730,770.30, 1,008,459.45 and 408,479.40 is: 563,699.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,770.30 : 1,008,459.45 = 408,479.40 : x
  2. Step 2: Convert to fraction form
    730,770.30/1,008,459.45 = 408,479.40/x
  3. Step 3: Cross multiply
    730,770.30x = 1,008,459.45 × 408,479.40
  4. Step 4: Simplify right side
    730,770.30x = 411,934,911,060.33
  5. Step 5: Solve for x
    x = 411,934,911,060.33/730,770.30
  6. Step 6: Final answer
    x = 563,699.58

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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.