Home / 740,002.55-1,021,400.88-417,901.19

Finding the Fourth Proportional to 740,002.55, 1,021,400.88 and 417,901.19

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Solution

The fourth proportional to 740,002.55, 1,021,400.88 and 417,901.19 is: 576,815.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,002.55 : 1,021,400.88 = 417,901.19 : x
  2. Step 2: Convert to fraction form
    740,002.55/1,021,400.88 = 417,901.19/x
  3. Step 3: Cross multiply
    740,002.55x = 1,021,400.88 × 417,901.19
  4. Step 4: Simplify right side
    740,002.55x = 426,844,643,219.05
  5. Step 5: Solve for x
    x = 426,844,643,219.05/740,002.55
  6. Step 6: Final answer
    x = 576,815.10

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Half scale
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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.