Home / 829,802.88-1,145,132.64-472,106.88

Finding the Fourth Proportional to 829,802.88, 1,145,132.64 and 472,106.88

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Solution

The fourth proportional to 829,802.88, 1,145,132.64 and 472,106.88 is: 651,510.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,802.88 : 1,145,132.64 = 472,106.88 : x
  2. Step 2: Convert to fraction form
    829,802.88/1,145,132.64 = 472,106.88/x
  3. Step 3: Cross multiply
    829,802.88x = 1,145,132.64 × 472,106.88
  4. Step 4: Simplify right side
    829,802.88x = 540,624,997,856.56
  5. Step 5: Solve for x
    x = 540,624,997,856.56/829,802.88
  6. Step 6: Final answer
    x = 651,510.15

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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.