Home / 2,129,316.54-2,938,280.28-1,211,301.42

Finding the Fourth Proportional to 2,129,316.54, 2,938,280.28 and 1,211,301.42

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Solution

The fourth proportional to 2,129,316.54, 2,938,280.28 and 1,211,301.42 is: 1,671,495.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129,316.54 : 2,938,280.28 = 1,211,301.42 : x
  2. Step 2: Convert to fraction form
    2,129,316.54/2,938,280.28 = 1,211,301.42/x
  3. Step 3: Cross multiply
    2,129,316.54x = 2,938,280.28 × 1,211,301.42
  4. Step 4: Simplify right side
    2,129,316.54x = 3,559,143,075,522.00
  5. Step 5: Solve for x
    x = 3,559,143,075,522.00/2,129,316.54
  6. Step 6: Final answer
    x = 1,671,495.53

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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.