Home / 920,528.63-1,270,294.08-512,647.67

Finding the Fourth Proportional to 920,528.63, 1,270,294.08 and 512,647.67

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Solution

The fourth proportional to 920,528.63, 1,270,294.08 and 512,647.67 is: 707,434.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,528.63 : 1,270,294.08 = 512,647.67 : x
  2. Step 2: Convert to fraction form
    920,528.63/1,270,294.08 = 512,647.67/x
  3. Step 3: Cross multiply
    920,528.63x = 1,270,294.08 × 512,647.67
  4. Step 4: Simplify right side
    920,528.63x = 651,213,300,326.79
  5. Step 5: Solve for x
    x = 651,213,300,326.79/920,528.63
  6. Step 6: Final answer
    x = 707,434.05

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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.