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Finding the Fourth Proportional to 660,002.40, 910,804.32 and 358,197.12

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Solution

The fourth proportional to 660,002.40, 910,804.32 and 358,197.12 is: 494,312.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,002.40 : 910,804.32 = 358,197.12 : x
  2. Step 2: Convert to fraction form
    660,002.40/910,804.32 = 358,197.12/x
  3. Step 3: Cross multiply
    660,002.40x = 910,804.32 × 358,197.12
  4. Step 4: Simplify right side
    660,002.40x = 326,247,484,307.56
  5. Step 5: Solve for x
    x = 326,247,484,307.56/660,002.40
  6. Step 6: Final answer
    x = 494,312.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.