Home / 999,440.49-1,379,223.54-540,555.51

Finding the Fourth Proportional to 999,440.49, 1,379,223.54 and 540,555.51

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Solution

The fourth proportional to 999,440.49, 1,379,223.54 and 540,555.51 is: 745,964.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,440.49 : 1,379,223.54 = 540,555.51 : x
  2. Step 2: Convert to fraction form
    999,440.49/1,379,223.54 = 540,555.51/x
  3. Step 3: Cross multiply
    999,440.49x = 1,379,223.54 × 540,555.51
  4. Step 4: Simplify right side
    999,440.49x = 745,546,884,068.71
  5. Step 5: Solve for x
    x = 745,546,884,068.71/999,440.49
  6. Step 6: Final answer
    x = 745,964.26

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1.5x scale

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.