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Finding the Fourth Proportional to 890,683.52, 1,334,624 and 688,772.48

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Solution

The fourth proportional to 890,683.52, 1,334,624 and 688,772.48 is: 1,032,075.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,683.52 : 1,334,624 = 688,772.48 : x
  2. Step 2: Convert to fraction form
    890,683.52/1,334,624 = 688,772.48/x
  3. Step 3: Cross multiply
    890,683.52x = 1,334,624 × 688,772.48
  4. Step 4: Simplify right side
    890,683.52x = 919,252,282,347.52
  5. Step 5: Solve for x
    x = 919,252,282,347.52/890,683.52
  6. Step 6: Final answer
    x = 1,032,075.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.