Home / 993,018.45-1,488,361.28-459,412.32

Finding the Fourth Proportional to 993,018.45, 1,488,361.28 and 459,412.32

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Solution

The fourth proportional to 993,018.45, 1,488,361.28 and 459,412.32 is: 688,578.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,018.45 : 1,488,361.28 = 459,412.32 : x
  2. Step 2: Convert to fraction form
    993,018.45/1,488,361.28 = 459,412.32/x
  3. Step 3: Cross multiply
    993,018.45x = 1,488,361.28 × 459,412.32
  4. Step 4: Simplify right side
    993,018.45x = 683,771,506,345.91
  5. Step 5: Solve for x
    x = 683,771,506,345.91/993,018.45
  6. Step 6: Final answer
    x = 688,578.85

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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.