Home / 1,048,705.40-1,447,412.43-656,420.39

Finding the Fourth Proportional to 1,048,705.40, 1,447,412.43 and 656,420.39

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Solution

The fourth proportional to 1,048,705.40, 1,447,412.43 and 656,420.39 is: 905,984.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,048,705.40 : 1,447,412.43 = 656,420.39 : x
  2. Step 2: Convert to fraction form
    1,048,705.40/1,447,412.43 = 656,420.39/x
  3. Step 3: Cross multiply
    1,048,705.40x = 1,447,412.43 × 656,420.39
  4. Step 4: Simplify right side
    1,048,705.40x = 950,111,024,554.39
  5. Step 5: Solve for x
    x = 950,111,024,554.39/1,048,705.40
  6. Step 6: Final answer
    x = 905,984.68

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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.