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Finding the Fourth Proportional to 525,852.70, 788,779.05 and 494,748.70

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Solution

The fourth proportional to 525,852.70, 788,779.05 and 494,748.70 is: 742,123.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,852.70 : 788,779.05 = 494,748.70 : x
  2. Step 2: Convert to fraction form
    525,852.70/788,779.05 = 494,748.70/x
  3. Step 3: Cross multiply
    525,852.70x = 788,779.05 × 494,748.70
  4. Step 4: Simplify right side
    525,852.70x = 390,247,409,574.74
  5. Step 5: Solve for x
    x = 390,247,409,574.74/525,852.70
  6. Step 6: Final answer
    x = 742,123.05

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Similar ratio
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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.