Home / 785,807.70-1,178,711.55-470,102.10

Finding the Fourth Proportional to 785,807.70, 1,178,711.55 and 470,102.10

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Solution

The fourth proportional to 785,807.70, 1,178,711.55 and 470,102.10 is: 705,153.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,807.70 : 1,178,711.55 = 470,102.10 : x
  2. Step 2: Convert to fraction form
    785,807.70/1,178,711.55 = 470,102.10/x
  3. Step 3: Cross multiply
    785,807.70x = 1,178,711.55 × 470,102.10
  4. Step 4: Simplify right side
    785,807.70x = 554,114,774,949.26
  5. Step 5: Solve for x
    x = 554,114,774,949.26/785,807.70
  6. Step 6: Final answer
    x = 705,153.15

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Double scale
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Similar ratio
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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.