Home / 992,741.79-1,489,742.50-424,127.16

Finding the Fourth Proportional to 992,741.79, 1,489,742.50 and 424,127.16

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Solution

The fourth proportional to 992,741.79, 1,489,742.50 and 424,127.16 is: 636,459.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,741.79 : 1,489,742.50 = 424,127.16 : x
  2. Step 2: Convert to fraction form
    992,741.79/1,489,742.50 = 424,127.16/x
  3. Step 3: Cross multiply
    992,741.79x = 1,489,742.50 × 424,127.16
  4. Step 4: Simplify right side
    992,741.79x = 631,840,255,656.30
  5. Step 5: Solve for x
    x = 631,840,255,656.30/992,741.79
  6. Step 6: Final answer
    x = 636,459.81

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1.5x scale

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.