Home / 710,421.60-1,065,632.40-429,794.40

Finding the Fourth Proportional to 710,421.60, 1,065,632.40 and 429,794.40

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Solution

The fourth proportional to 710,421.60, 1,065,632.40 and 429,794.40 is: 644,691.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,421.60 : 1,065,632.40 = 429,794.40 : x
  2. Step 2: Convert to fraction form
    710,421.60/1,065,632.40 = 429,794.40/x
  3. Step 3: Cross multiply
    710,421.60x = 1,065,632.40 × 429,794.40
  4. Step 4: Simplify right side
    710,421.60x = 458,002,837,978.56
  5. Step 5: Solve for x
    x = 458,002,837,978.56/710,421.60
  6. Step 6: Final answer
    x = 644,691.60

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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.