Home / 1,755,639.47-2,421,812.40-1,429,303.52

Finding the Fourth Proportional to 1,755,639.47, 2,421,812.40 and 1,429,303.52

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Solution

The fourth proportional to 1,755,639.47, 2,421,812.40 and 1,429,303.52 is: 1,971,649.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,755,639.47 : 2,421,812.40 = 1,429,303.52 : x
  2. Step 2: Convert to fraction form
    1,755,639.47/2,421,812.40 = 1,429,303.52/x
  3. Step 3: Cross multiply
    1,755,639.47x = 2,421,812.40 × 1,429,303.52
  4. Step 4: Simplify right side
    1,755,639.47x = 3,461,504,975,990.59
  5. Step 5: Solve for x
    x = 3,461,504,975,990.59/1,755,639.47
  6. Step 6: Final answer
    x = 1,971,649.10

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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.