Home / 1,292,045.60-1,938,068.40-819,264.80

Finding the Fourth Proportional to 1,292,045.60, 1,938,068.40 and 819,264.80

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Solution

The fourth proportional to 1,292,045.60, 1,938,068.40 and 819,264.80 is: 1,228,897.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,045.60 : 1,938,068.40 = 819,264.80 : x
  2. Step 2: Convert to fraction form
    1,292,045.60/1,938,068.40 = 819,264.80/x
  3. Step 3: Cross multiply
    1,292,045.60x = 1,938,068.40 × 819,264.80
  4. Step 4: Simplify right side
    1,292,045.60x = 1,587,791,220,112.32
  5. Step 5: Solve for x
    x = 1,587,791,220,112.32/1,292,045.60
  6. Step 6: Final answer
    x = 1,228,897.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.