Home / 1,319,792.39-1,980,437.42-712,572.56

Finding the Fourth Proportional to 1,319,792.39, 1,980,437.42 and 712,572.56

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Solution

The fourth proportional to 1,319,792.39, 1,980,437.42 and 712,572.56 is: 1,069,263.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,792.39 : 1,980,437.42 = 712,572.56 : x
  2. Step 2: Convert to fraction form
    1,319,792.39/1,980,437.42 = 712,572.56/x
  3. Step 3: Cross multiply
    1,319,792.39x = 1,980,437.42 × 712,572.56
  4. Step 4: Simplify right side
    1,319,792.39x = 1,411,205,362,289.20
  5. Step 5: Solve for x
    x = 1,411,205,362,289.20/1,319,792.39
  6. Step 6: Final answer
    x = 1,069,263.15

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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.