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Finding the Fourth Proportional to 1,047,840, 1,446,252.48 and 665,792.16

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Solution

The fourth proportional to 1,047,840, 1,446,252.48 and 665,792.16 is: 918,941.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047,840 : 1,446,252.48 = 665,792.16 : x
  2. Step 2: Convert to fraction form
    1,047,840/1,446,252.48 = 665,792.16/x
  3. Step 3: Cross multiply
    1,047,840x = 1,446,252.48 × 665,792.16
  4. Step 4: Simplify right side
    1,047,840x = 962,903,562,564.56
  5. Step 5: Solve for x
    x = 962,903,562,564.56/1,047,840
  6. Step 6: Final answer
    x = 918,941.41

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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.