Home / 917,362.86-1,266,002.78-509,466.50

Finding the Fourth Proportional to 917,362.86, 1,266,002.78 and 509,466.50

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Solution

The fourth proportional to 917,362.86, 1,266,002.78 and 509,466.50 is: 703,087.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,362.86 : 1,266,002.78 = 509,466.50 : x
  2. Step 2: Convert to fraction form
    917,362.86/1,266,002.78 = 509,466.50/x
  3. Step 3: Cross multiply
    917,362.86x = 1,266,002.78 × 509,466.50
  4. Step 4: Simplify right side
    917,362.86x = 644,986,005,316.87
  5. Step 5: Solve for x
    x = 644,986,005,316.87/917,362.86
  6. Step 6: Final answer
    x = 703,087.11

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.