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Finding the Fourth Proportional to 672,159.84, 927,289.13 and 400,075.17

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Solution

The fourth proportional to 672,159.84, 927,289.13 and 400,075.17 is: 551,930.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,159.84 : 927,289.13 = 400,075.17 : x
  2. Step 2: Convert to fraction form
    672,159.84/927,289.13 = 400,075.17/x
  3. Step 3: Cross multiply
    672,159.84x = 927,289.13 × 400,075.17
  4. Step 4: Simplify right side
    672,159.84x = 370,985,354,323.53
  5. Step 5: Solve for x
    x = 370,985,354,323.53/672,159.84
  6. Step 6: Final answer
    x = 551,930.26

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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.