Home / 864,480.53-1,296,702.47-288,145.49

Finding the Fourth Proportional to 864,480.53, 1,296,702.47 and 288,145.49

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Solution

The fourth proportional to 864,480.53, 1,296,702.47 and 288,145.49 is: 432,212.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,480.53 : 1,296,702.47 = 288,145.49 : x
  2. Step 2: Convert to fraction form
    864,480.53/1,296,702.47 = 288,145.49/x
  3. Step 3: Cross multiply
    864,480.53x = 1,296,702.47 × 288,145.49
  4. Step 4: Simplify right side
    864,480.53x = 373,638,962,839.21
  5. Step 5: Solve for x
    x = 373,638,962,839.21/864,480.53
  6. Step 6: Final answer
    x = 432,212.12

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1.5x scale

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.