Home / 1,126,285.52-1,554,385.56-642,923.40

Finding the Fourth Proportional to 1,126,285.52, 1,554,385.56 and 642,923.40

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Solution

The fourth proportional to 1,126,285.52, 1,554,385.56 and 642,923.40 is: 887,297.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,285.52 : 1,554,385.56 = 642,923.40 : x
  2. Step 2: Convert to fraction form
    1,126,285.52/1,554,385.56 = 642,923.40/x
  3. Step 3: Cross multiply
    1,126,285.52x = 1,554,385.56 × 642,923.40
  4. Step 4: Simplify right side
    1,126,285.52x = 999,350,849,146.10
  5. Step 5: Solve for x
    x = 999,350,849,146.10/1,126,285.52
  6. Step 6: Final answer
    x = 887,297.96

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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.