Home / 1,319,810.92-1,980,465.39-712,591.18

Finding the Fourth Proportional to 1,319,810.92, 1,980,465.39 and 712,591.18

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Solution

The fourth proportional to 1,319,810.92, 1,980,465.39 and 712,591.18 is: 1,069,291.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,810.92 : 1,980,465.39 = 712,591.18 : x
  2. Step 2: Convert to fraction form
    1,319,810.92/1,980,465.39 = 712,591.18/x
  3. Step 3: Cross multiply
    1,319,810.92x = 1,980,465.39 × 712,591.18
  4. Step 4: Simplify right side
    1,319,810.92x = 1,411,262,169,209.26
  5. Step 5: Solve for x
    x = 1,411,262,169,209.26/1,319,810.92
  6. Step 6: Final answer
    x = 1,069,291.17

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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.