Home / 992,852.81-1,370,142.83-540,147.05

Finding the Fourth Proportional to 992,852.81, 1,370,142.83 and 540,147.05

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Solution

The fourth proportional to 992,852.81, 1,370,142.83 and 540,147.05 is: 745,406.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,852.81 : 1,370,142.83 = 540,147.05 : x
  2. Step 2: Convert to fraction form
    992,852.81/1,370,142.83 = 540,147.05/x
  3. Step 3: Cross multiply
    992,852.81x = 1,370,142.83 × 540,147.05
  4. Step 4: Simplify right side
    992,852.81x = 740,078,607,703.15
  5. Step 5: Solve for x
    x = 740,078,607,703.15/992,852.81
  6. Step 6: Final answer
    x = 745,406.17

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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.