Home / 992,970-1,370,327.76-540,290.16

Finding the Fourth Proportional to 992,970, 1,370,327.76 and 540,290.16

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Solution

The fourth proportional to 992,970, 1,370,327.76 and 540,290.16 is: 745,616.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,970 : 1,370,327.76 = 540,290.16 : x
  2. Step 2: Convert to fraction form
    992,970/1,370,327.76 = 540,290.16/x
  3. Step 3: Cross multiply
    992,970x = 1,370,327.76 × 540,290.16
  4. Step 4: Simplify right side
    992,970x = 740,374,604,702.84
  5. Step 5: Solve for x
    x = 740,374,604,702.84/992,970
  6. Step 6: Final answer
    x = 745,616.29

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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.