Home / 877,661.40-1,316,492.10-498,435.60

Finding the Fourth Proportional to 877,661.40, 1,316,492.10 and 498,435.60

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Solution

The fourth proportional to 877,661.40, 1,316,492.10 and 498,435.60 is: 747,653.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,661.40 : 1,316,492.10 = 498,435.60 : x
  2. Step 2: Convert to fraction form
    877,661.40/1,316,492.10 = 498,435.60/x
  3. Step 3: Cross multiply
    877,661.40x = 1,316,492.10 × 498,435.60
  4. Step 4: Simplify right side
    877,661.40x = 656,186,529,758.76
  5. Step 5: Solve for x
    x = 656,186,529,758.76/877,661.40
  6. Step 6: Final answer
    x = 747,653.40

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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.