Home / 630,352-869,885.76-343,873.24

Finding the Fourth Proportional to 630,352, 869,885.76 and 343,873.24

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Solution

The fourth proportional to 630,352, 869,885.76 and 343,873.24 is: 474,545.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,352 : 869,885.76 = 343,873.24 : x
  2. Step 2: Convert to fraction form
    630,352/869,885.76 = 343,873.24/x
  3. Step 3: Cross multiply
    630,352x = 869,885.76 × 343,873.24
  4. Step 4: Simplify right side
    630,352x = 299,130,434,721.06
  5. Step 5: Solve for x
    x = 299,130,434,721.06/630,352
  6. Step 6: Final answer
    x = 474,545.07

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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.