Home / 711,136.02-1,066,705.08-290,411.91

Finding the Fourth Proportional to 711,136.02, 1,066,705.08 and 290,411.91

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Solution

The fourth proportional to 711,136.02, 1,066,705.08 and 290,411.91 is: 435,618.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,136.02 : 1,066,705.08 = 290,411.91 : x
  2. Step 2: Convert to fraction form
    711,136.02/1,066,705.08 = 290,411.91/x
  3. Step 3: Cross multiply
    711,136.02x = 1,066,705.08 × 290,411.91
  4. Step 4: Simplify right side
    711,136.02x = 309,783,859,689.50
  5. Step 5: Solve for x
    x = 309,783,859,689.50/711,136.02
  6. Step 6: Final answer
    x = 435,618.29

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Double scale
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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.