Home / 679,412.19-1,019,339.72-342,426.93

Finding the Fourth Proportional to 679,412.19, 1,019,339.72 and 342,426.93

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Solution

The fourth proportional to 679,412.19, 1,019,339.72 and 342,426.93 is: 513,752.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,412.19 : 1,019,339.72 = 342,426.93 : x
  2. Step 2: Convert to fraction form
    679,412.19/1,019,339.72 = 342,426.93/x
  3. Step 3: Cross multiply
    679,412.19x = 1,019,339.72 × 342,426.93
  4. Step 4: Simplify right side
    679,412.19x = 349,049,370,946.66
  5. Step 5: Solve for x
    x = 349,049,370,946.66/679,412.19
  6. Step 6: Final answer
    x = 513,752.00

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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.