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Finding the Fourth Proportional to 526,931.60, 788,064.60 and 442,950.80

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Solution

The fourth proportional to 526,931.60, 788,064.60 and 442,950.80 is: 662,465.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,931.60 : 788,064.60 = 442,950.80 : x
  2. Step 2: Convert to fraction form
    526,931.60/788,064.60 = 442,950.80/x
  3. Step 3: Cross multiply
    526,931.60x = 788,064.60 × 442,950.80
  4. Step 4: Simplify right side
    526,931.60x = 349,073,845,021.68
  5. Step 5: Solve for x
    x = 349,073,845,021.68/526,931.60
  6. Step 6: Final answer
    x = 662,465.19

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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.