Finding the Fourth Proportional to 573,139.80, 859,709.70 and 519,995.70
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Solution
The fourth proportional to 573,139.80, 859,709.70 and 519,995.70 is: 779,993.55
Step by Step Solution
- Step 1: Write the proportion equation
573,139.80 : 859,709.70 = 519,995.70 : x - Step 2: Convert to fraction form
573,139.80/859,709.70 = 519,995.70/x - Step 3: Cross multiply
573,139.80x = 859,709.70 × 519,995.70 - Step 4: Simplify right side
573,139.80x = 447,045,347,248.29 - Step 5: Solve for x
x = 447,045,347,248.29/573,139.80 - Step 6: Final answer
x = 779,993.55
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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.