Home / 710,793.20-1,064,634.60-429,820.40

Finding the Fourth Proportional to 710,793.20, 1,064,634.60 and 429,820.40

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Solution

The fourth proportional to 710,793.20, 1,064,634.60 and 429,820.40 is: 643,790.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,793.20 : 1,064,634.60 = 429,820.40 : x
  2. Step 2: Convert to fraction form
    710,793.20/1,064,634.60 = 429,820.40/x
  3. Step 3: Cross multiply
    710,793.20x = 1,064,634.60 × 429,820.40
  4. Step 4: Simplify right side
    710,793.20x = 457,601,669,625.84
  5. Step 5: Solve for x
    x = 457,601,669,625.84/710,793.20
  6. Step 6: Final answer
    x = 643,790.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.