Home / 1,390,542.63-1,918,671.48-846,313.89

Finding the Fourth Proportional to 1,390,542.63, 1,918,671.48 and 846,313.89

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Solution

The fourth proportional to 1,390,542.63, 1,918,671.48 and 846,313.89 is: 1,167,744.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,542.63 : 1,918,671.48 = 846,313.89 : x
  2. Step 2: Convert to fraction form
    1,390,542.63/1,918,671.48 = 846,313.89/x
  3. Step 3: Cross multiply
    1,390,542.63x = 1,918,671.48 × 846,313.89
  4. Step 4: Simplify right side
    1,390,542.63x = 1,623,798,323,870.86
  5. Step 5: Solve for x
    x = 1,623,798,323,870.86/1,390,542.63
  6. Step 6: Final answer
    x = 1,167,744.37

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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.