Home / 1,390,541.13-1,918,669.41-846,312.39

Finding the Fourth Proportional to 1,390,541.13, 1,918,669.41 and 846,312.39

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Solution

The fourth proportional to 1,390,541.13, 1,918,669.41 and 846,312.39 is: 1,167,742.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,541.13 : 1,918,669.41 = 846,312.39 : x
  2. Step 2: Convert to fraction form
    1,390,541.13/1,918,669.41 = 846,312.39/x
  3. Step 3: Cross multiply
    1,390,541.13x = 1,918,669.41 × 846,312.39
  4. Step 4: Simplify right side
    1,390,541.13x = 1,623,793,693,996.99
  5. Step 5: Solve for x
    x = 1,623,793,693,996.99/1,390,541.13
  6. Step 6: Final answer
    x = 1,167,742.30

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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.