Home / 1,428,472.55-1,970,984.18-824,510.63

Finding the Fourth Proportional to 1,428,472.55, 1,970,984.18 and 824,510.63

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Solution

The fourth proportional to 1,428,472.55, 1,970,984.18 and 824,510.63 is: 1,137,646.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,472.55 : 1,970,984.18 = 824,510.63 : x
  2. Step 2: Convert to fraction form
    1,428,472.55/1,970,984.18 = 824,510.63/x
  3. Step 3: Cross multiply
    1,428,472.55x = 1,970,984.18 × 824,510.63
  4. Step 4: Simplify right side
    1,428,472.55x = 1,625,097,393,994.36
  5. Step 5: Solve for x
    x = 1,625,097,393,994.36/1,428,472.55
  6. Step 6: Final answer
    x = 1,137,646.92

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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.