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Finding the Fourth Proportional to 525,807.30, 788,710.95 and 494,703.30

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Solution

The fourth proportional to 525,807.30, 788,710.95 and 494,703.30 is: 742,054.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,807.30 : 788,710.95 = 494,703.30 : x
  2. Step 2: Convert to fraction form
    525,807.30/788,710.95 = 494,703.30/x
  3. Step 3: Cross multiply
    525,807.30x = 788,710.95 × 494,703.30
  4. Step 4: Simplify right side
    525,807.30x = 390,177,909,711.14
  5. Step 5: Solve for x
    x = 390,177,909,711.14/525,807.30
  6. Step 6: Final answer
    x = 742,054.95

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Double scale
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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.