Home / 920,402.98-1,270,144-506,931.82

Finding the Fourth Proportional to 920,402.98, 1,270,144 and 506,931.82

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Solution

The fourth proportional to 920,402.98, 1,270,144 and 506,931.82 is: 699,559.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,402.98 : 1,270,144 = 506,931.82 : x
  2. Step 2: Convert to fraction form
    920,402.98/1,270,144 = 506,931.82/x
  3. Step 3: Cross multiply
    920,402.98x = 1,270,144 × 506,931.82
  4. Step 4: Simplify right side
    920,402.98x = 643,876,409,582.08
  5. Step 5: Solve for x
    x = 643,876,409,582.08/920,402.98
  6. Step 6: Final answer
    x = 699,559.24

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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.