Finding the Fourth Proportional to 570,884.92, 787,811.34 and 316,230.76
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Solution
The fourth proportional to 570,884.92, 787,811.34 and 316,230.76 is: 436,392.99
Step by Step Solution
- Step 1: Write the proportion equation
570,884.92 : 787,811.34 = 316,230.76 : x - Step 2: Convert to fraction form
570,884.92/787,811.34 = 316,230.76/x - Step 3: Cross multiply
570,884.92x = 787,811.34 × 316,230.76 - Step 4: Simplify right side
570,884.92x = 249,130,178,784.82 - Step 5: Solve for x
x = 249,130,178,784.82/570,884.92 - Step 6: Final answer
x = 436,392.99
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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.