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Finding the Fourth Proportional to 660,534.65, 911,541.30 and 370,146.86

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Solution

The fourth proportional to 660,534.65, 911,541.30 and 370,146.86 is: 510,804.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,534.65 : 911,541.30 = 370,146.86 : x
  2. Step 2: Convert to fraction form
    660,534.65/911,541.30 = 370,146.86/x
  3. Step 3: Cross multiply
    660,534.65x = 911,541.30 × 370,146.86
  4. Step 4: Simplify right side
    660,534.65x = 337,404,152,555.26
  5. Step 5: Solve for x
    x = 337,404,152,555.26/660,534.65
  6. Step 6: Final answer
    x = 510,804.62

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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.