Home / 630,307.95-869,831.28-343,834.08

Finding the Fourth Proportional to 630,307.95, 869,831.28 and 343,834.08

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Solution

The fourth proportional to 630,307.95, 869,831.28 and 343,834.08 is: 474,494.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,307.95 : 869,831.28 = 343,834.08 : x
  2. Step 2: Convert to fraction form
    630,307.95/869,831.28 = 343,834.08/x
  3. Step 3: Cross multiply
    630,307.95x = 869,831.28 × 343,834.08
  4. Step 4: Simplify right side
    630,307.95x = 299,077,637,914.02
  5. Step 5: Solve for x
    x = 299,077,637,914.02/630,307.95
  6. Step 6: Final answer
    x = 474,494.47

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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.