Home / 1,210,313.95-1,815,710.49-345,756.32

Finding the Fourth Proportional to 1,210,313.95, 1,815,710.49 and 345,756.32

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Solution

The fourth proportional to 1,210,313.95, 1,815,710.49 and 345,756.32 is: 518,702.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,313.95 : 1,815,710.49 = 345,756.32 : x
  2. Step 2: Convert to fraction form
    1,210,313.95/1,815,710.49 = 345,756.32/x
  3. Step 3: Cross multiply
    1,210,313.95x = 1,815,710.49 × 345,756.32
  4. Step 4: Simplify right side
    1,210,313.95x = 627,793,374,938.16
  5. Step 5: Solve for x
    x = 627,793,374,938.16/1,210,313.95
  6. Step 6: Final answer
    x = 518,702.92

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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.