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Finding the Fourth Proportional to 508,030.80, 710,310 and 508,030.80

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Solution

The fourth proportional to 508,030.80, 710,310 and 508,030.80 is: 710,310

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,030.80 : 710,310 = 508,030.80 : x
  2. Step 2: Convert to fraction form
    508,030.80/710,310 = 508,030.80/x
  3. Step 3: Cross multiply
    508,030.80x = 710,310 × 508,030.80
  4. Step 4: Simplify right side
    508,030.80x = 360,859,357,548
  5. Step 5: Solve for x
    x = 360,859,357,548/508,030.80
  6. Step 6: Final answer
    x = 710,310

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.