Home / 989,629.98-1,484,590.80-358,396.20

Finding the Fourth Proportional to 989,629.98, 1,484,590.80 and 358,396.20

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Solution

The fourth proportional to 989,629.98, 1,484,590.80 and 358,396.20 is: 537,647.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,629.98 : 1,484,590.80 = 358,396.20 : x
  2. Step 2: Convert to fraction form
    989,629.98/1,484,590.80 = 358,396.20/x
  3. Step 3: Cross multiply
    989,629.98x = 1,484,590.80 × 358,396.20
  4. Step 4: Simplify right side
    989,629.98x = 532,071,701,274.96
  5. Step 5: Solve for x
    x = 532,071,701,274.96/989,629.98
  6. Step 6: Final answer
    x = 537,647.11

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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.