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Finding the Fourth Proportional to 525,123.40, 788,268.30 and 288,927.40

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Solution

The fourth proportional to 525,123.40, 788,268.30 and 288,927.40 is: 433,711.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,123.40 : 788,268.30 = 288,927.40 : x
  2. Step 2: Convert to fraction form
    525,123.40/788,268.30 = 288,927.40/x
  3. Step 3: Cross multiply
    525,123.40x = 788,268.30 × 288,927.40
  4. Step 4: Simplify right side
    525,123.40x = 227,752,310,421.42
  5. Step 5: Solve for x
    x = 227,752,310,421.42/525,123.40
  6. Step 6: Final answer
    x = 433,711.98

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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.