Home / 1,280,048.93-1,919,430.53-426,818.52

Finding the Fourth Proportional to 1,280,048.93, 1,919,430.53 and 426,818.52

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Solution

The fourth proportional to 1,280,048.93, 1,919,430.53 and 426,818.52 is: 640,013.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,048.93 : 1,919,430.53 = 426,818.52 : x
  2. Step 2: Convert to fraction form
    1,280,048.93/1,919,430.53 = 426,818.52/x
  3. Step 3: Cross multiply
    1,280,048.93x = 1,919,430.53 × 426,818.52
  4. Step 4: Simplify right side
    1,280,048.93x = 819,248,495,923.32
  5. Step 5: Solve for x
    x = 819,248,495,923.32/1,280,048.93
  6. Step 6: Final answer
    x = 640,013.42

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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.