Home / 903,985.57-1,247,482.65-496,085.77

Finding the Fourth Proportional to 903,985.57, 1,247,482.65 and 496,085.77

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Solution

The fourth proportional to 903,985.57, 1,247,482.65 and 496,085.77 is: 684,588.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,985.57 : 1,247,482.65 = 496,085.77 : x
  2. Step 2: Convert to fraction form
    903,985.57/1,247,482.65 = 496,085.77/x
  3. Step 3: Cross multiply
    903,985.57x = 1,247,482.65 × 496,085.77
  4. Step 4: Simplify right side
    903,985.57x = 618,858,390,986.89
  5. Step 5: Solve for x
    x = 618,858,390,986.89/903,985.57
  6. Step 6: Final answer
    x = 684,588.79

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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.