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Finding the Fourth Proportional to 482,802.57, 666,223.53 and 286,535.21

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Solution

The fourth proportional to 482,802.57, 666,223.53 and 286,535.21 is: 395,392.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,802.57 : 666,223.53 = 286,535.21 : x
  2. Step 2: Convert to fraction form
    482,802.57/666,223.53 = 286,535.21/x
  3. Step 3: Cross multiply
    482,802.57x = 666,223.53 × 286,535.21
  4. Step 4: Simplify right side
    482,802.57x = 190,896,495,744.37
  5. Step 5: Solve for x
    x = 190,896,495,744.37/482,802.57
  6. Step 6: Final answer
    x = 395,392.46

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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.