Home / 1,391,702.16-2,087,880.06-432,108.48

Finding the Fourth Proportional to 1,391,702.16, 2,087,880.06 and 432,108.48

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Solution

The fourth proportional to 1,391,702.16, 2,087,880.06 and 432,108.48 is: 648,264.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,702.16 : 2,087,880.06 = 432,108.48 : x
  2. Step 2: Convert to fraction form
    1,391,702.16/2,087,880.06 = 432,108.48/x
  3. Step 3: Cross multiply
    1,391,702.16x = 2,087,880.06 × 432,108.48
  4. Step 4: Simplify right side
    1,391,702.16x = 902,190,679,148.91
  5. Step 5: Solve for x
    x = 902,190,679,148.91/1,391,702.16
  6. Step 6: Final answer
    x = 648,264.19

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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.