Home / 1,390,303.85-2,085,850.33-716,876.33

Finding the Fourth Proportional to 1,390,303.85, 2,085,850.33 and 716,876.33

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Solution

The fourth proportional to 1,390,303.85, 2,085,850.33 and 716,876.33 is: 1,075,517.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,303.85 : 2,085,850.33 = 716,876.33 : x
  2. Step 2: Convert to fraction form
    1,390,303.85/2,085,850.33 = 716,876.33/x
  3. Step 3: Cross multiply
    1,390,303.85x = 2,085,850.33 × 716,876.33
  4. Step 4: Simplify right side
    1,390,303.85x = 1,495,296,717,278.25
  5. Step 5: Solve for x
    x = 1,495,296,717,278.25/1,390,303.85
  6. Step 6: Final answer
    x = 1,075,517.93

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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.