Home / 688,317.02-949,904.14-470,981.27

Finding the Fourth Proportional to 688,317.02, 949,904.14 and 470,981.27

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Solution

The fourth proportional to 688,317.02, 949,904.14 and 470,981.27 is: 649,972.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,317.02 : 949,904.14 = 470,981.27 : x
  2. Step 2: Convert to fraction form
    688,317.02/949,904.14 = 470,981.27/x
  3. Step 3: Cross multiply
    688,317.02x = 949,904.14 × 470,981.27
  4. Step 4: Simplify right side
    688,317.02x = 447,387,058,235.46
  5. Step 5: Solve for x
    x = 447,387,058,235.46/688,317.02
  6. Step 6: Final answer
    x = 649,972.39

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Double scale
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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.