Home / 918,009.40-1,377,014.10-902,457.40

Finding the Fourth Proportional to 918,009.40, 1,377,014.10 and 902,457.40

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Solution

The fourth proportional to 918,009.40, 1,377,014.10 and 902,457.40 is: 1,353,686.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,009.40 : 1,377,014.10 = 902,457.40 : x
  2. Step 2: Convert to fraction form
    918,009.40/1,377,014.10 = 902,457.40/x
  3. Step 3: Cross multiply
    918,009.40x = 1,377,014.10 × 902,457.40
  4. Step 4: Simplify right side
    918,009.40x = 1,242,696,564,449.34
  5. Step 5: Solve for x
    x = 1,242,696,564,449.34/918,009.40
  6. Step 6: Final answer
    x = 1,353,686.10

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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.