Home / 758,145.36-1,045,988.70-500,150.40

Finding the Fourth Proportional to 758,145.36, 1,045,988.70 and 500,150.40

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Solution

The fourth proportional to 758,145.36, 1,045,988.70 and 500,150.40 is: 690,041.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,145.36 : 1,045,988.70 = 500,150.40 : x
  2. Step 2: Convert to fraction form
    758,145.36/1,045,988.70 = 500,150.40/x
  3. Step 3: Cross multiply
    758,145.36x = 1,045,988.70 × 500,150.40
  4. Step 4: Simplify right side
    758,145.36x = 523,151,666,700.48
  5. Step 5: Solve for x
    x = 523,151,666,700.48/758,145.36
  6. Step 6: Final answer
    x = 690,041.38

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Double scale
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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.