Finding the Fourth Proportional to 707,811.68, 977,735.60 and 565,569.12
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Solution
The fourth proportional to 707,811.68, 977,735.60 and 565,569.12 is: 781,248.85
Step by Step Solution
- Step 1: Write the proportion equation
707,811.68 : 977,735.60 = 565,569.12 : x - Step 2: Convert to fraction form
707,811.68/977,735.60 = 565,569.12/x - Step 3: Cross multiply
707,811.68x = 977,735.60 × 565,569.12 - Step 4: Simplify right side
707,811.68x = 552,977,062,884.67 - Step 5: Solve for x
x = 552,977,062,884.67/707,811.68 - Step 6: Final answer
x = 781,248.85
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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.