Home / 1,428,603.51-1,971,466.65-784,034.13

Finding the Fourth Proportional to 1,428,603.51, 1,971,466.65 and 784,034.13

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Solution

The fourth proportional to 1,428,603.51, 1,971,466.65 and 784,034.13 is: 1,081,963.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,603.51 : 1,971,466.65 = 784,034.13 : x
  2. Step 2: Convert to fraction form
    1,428,603.51/1,971,466.65 = 784,034.13/x
  3. Step 3: Cross multiply
    1,428,603.51x = 1,971,466.65 × 784,034.13
  4. Step 4: Simplify right side
    1,428,603.51x = 1,545,697,139,756.76
  5. Step 5: Solve for x
    x = 1,545,697,139,756.76/1,428,603.51
  6. Step 6: Final answer
    x = 1,081,963.70

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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.