Finding the Fourth Proportional to 514,901.70, 772,352.55 and 479,909.70
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Solution
The fourth proportional to 514,901.70, 772,352.55 and 479,909.70 is: 719,864.55
Step by Step Solution
- Step 1: Write the proportion equation
514,901.70 : 772,352.55 = 479,909.70 : x - Step 2: Convert to fraction form
514,901.70/772,352.55 = 479,909.70/x - Step 3: Cross multiply
514,901.70x = 772,352.55 × 479,909.70 - Step 4: Simplify right side
514,901.70x = 370,659,480,564.74 - Step 5: Solve for x
x = 370,659,480,564.74/514,901.70 - Step 6: Final answer
x = 719,864.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.