Home / 442,931.10-662,647.05-384,416.70

Finding the Fourth Proportional to 442,931.10, 662,647.05 and 384,416.70

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Solution

The fourth proportional to 442,931.10, 662,647.05 and 384,416.70 is: 575,106.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,931.10 : 662,647.05 = 384,416.70 : x
  2. Step 2: Convert to fraction form
    442,931.10/662,647.05 = 384,416.70/x
  3. Step 3: Cross multiply
    442,931.10x = 662,647.05 × 384,416.70
  4. Step 4: Simplify right side
    442,931.10x = 254,732,592,225.74
  5. Step 5: Solve for x
    x = 254,732,592,225.74/442,931.10
  6. Step 6: Final answer
    x = 575,106.58

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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.