Home / 912,864.94-1,369,421.96-380,261.42

Finding the Fourth Proportional to 912,864.94, 1,369,421.96 and 380,261.42

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Solution

The fourth proportional to 912,864.94, 1,369,421.96 and 380,261.42 is: 570,444.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,864.94 : 1,369,421.96 = 380,261.42 : x
  2. Step 2: Convert to fraction form
    912,864.94/1,369,421.96 = 380,261.42/x
  3. Step 3: Cross multiply
    912,864.94x = 1,369,421.96 × 380,261.42
  4. Step 4: Simplify right side
    912,864.94x = 520,738,339,088.78
  5. Step 5: Solve for x
    x = 520,738,339,088.78/912,864.94
  6. Step 6: Final answer
    x = 570,444.01

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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.