Home / 779,461.40-1,075,747.48-648,407.54

Finding the Fourth Proportional to 779,461.40, 1,075,747.48 and 648,407.54

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Solution

The fourth proportional to 779,461.40, 1,075,747.48 and 648,407.54 is: 894,877.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,461.40 : 1,075,747.48 = 648,407.54 : x
  2. Step 2: Convert to fraction form
    779,461.40/1,075,747.48 = 648,407.54/x
  3. Step 3: Cross multiply
    779,461.40x = 1,075,747.48 × 648,407.54
  4. Step 4: Simplify right side
    779,461.40x = 697,522,778,236.35
  5. Step 5: Solve for x
    x = 697,522,778,236.35/779,461.40
  6. Step 6: Final answer
    x = 894,877.89

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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.